JH
John Harrington — 1930 US Census Record
Model Tree available1930 United States Federal Census · Merrimack, New Hampshire
Our Model Tree links this John Harrington across the 1900, 1910, 1920 and 1930 US Censuses in Merrimack, New Hampshire (XGBoost, ~Confirmed), with identified parents Jeremiah & Jeremiah — first a son (b.~1875), then head of a 3-person household.
Age 55
b. ~1875
Male
Son
Born: New Hampshire
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Merrimack, New Hampshire |
| Surname | Harrington |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | Supervisor |
| Industry | Granite |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Supervisor |
| Township / Ward | Concord City |
| Est. Birth Year | ~1875 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Harrington | Head | — | 77 | ~1853 |
| James Harrington | Son | — | 39 | ~1891 |
| John Harrington | Son | — | 55 | ~1875 |
Census Appearances
1900
Merrimack, New …
Son, age 29
Merrimack, New Hampshire · implied b. ~1871 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Birth Month | Oct |
| Birth Year | 1871 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Occupation | Steam Driller |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Merrimack, New …
Son, age 38
Merrimack, New Hampshire · implied b. ~1872 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Occupation | Engineer |
| Industry | Stone Quarry |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Merrimack, New …
Son, age 48
Merrimack, New Hampshire · implied b. ~1872 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Occupation | Steam Driller |
| Industry | Quarry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Son, age 55
Merrimack, New Hampshire · implied b. ~1875 — 3 household members
| Surname | Harrington |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Occupation | Supervisor |
| Industry | Granite |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Harrington across 4 US Census years (1900, 1910, 1920 and 1930) in Merrimack, New Hampshire, using XGBoost record linkage. Identified parents: father Jeremiah Harrington (~0.92 confidence) and father Jeremiah Harrington (~0.92 confidence) and father Patrick Harrington (~0.92 confidence) and mother Margaret Harrington (~0.92 confidence) and mother Margaret Harrington (~0.92 confidence) and mother Margaret Harrington (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jeremiah Harrington
b. ~1845
Source father
● Household
· direct · ~0.92
Father
Jeremiah Harrington
b. ~1847
Source father
● Household
· direct · ~0.92
Father
Patrick Harrington
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Margaret Harrington
b. ~1852
Source mother
● Household
· direct · ~0.92
Mother
Margaret Harrington
b. ~1853
Source mother
● Household
· direct · ~0.92
Mother
Margaret Harrington
b. ~1853
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Harrington
Son · 1930 · age 55 · b. ~1875 · New Hampshire
★ You are viewing this record
Sibling
James Harrington
Sibling · 1930 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Merrimack, New Hampshire
Open full size
1930 US Federal Census — Merrimack, New Hampshire
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1304unit:0601)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Brian J Shepard | 2 | Infant | — | Massachusetts |
| 2 | Mary G Sears | 34 | Daughter | Stenographer | New Hampshire |
| 3 | Dexter J Sears | 33 | Son-in-law | Auto Mechanic | Vermont |
| 4 | Agness L Shepard | 85 | Head | Merchant | New Hampshire |
| 5 | Lucy E Shepard | 53 | Daughter | — | New Hampshire |
| 6 | Clarence R Shepard | 47 | Son-in-law | Bookkeeper | New Hampshire |
| 7 | Oscar E Turcott | 68 | Head | Station Agent | Canada |
| 8 | Adelina M Turcott | 63 | Wife | — | Canada |
| 9 | Darius E Turcott | 35 | Son | Machinist | New Hampshire |
| 10 | Russell P Shepard | 60 | Head | Overseer | New Hampshire |
| 11 | Nellie B Shepard | 55 | Wife | — | New Hampshire |
| 12 | Russell B Shepard | 26 | Son | Laborer | New Hampshire |
| 13 | Lillian J Shepard | 20 | Daughter | Dental Assistant | New Hampshire |
| 14 | Ruth E Shepard | 17 | Daughter | — | New Hampshire |
| 15 | Dorothy M Shepard | 13 | Granddaughter | — | New Hampshire |
| 16 | Lucy E Marrell | 9 | Granddaughter | — | New Hampshire |
| 17 | Margaret Harrington | 77 | Head | — | New Hampshire |
| 18 | John E Harrington THIS PERSON | 55 | Son | Supervisor | New Hampshire |
| 19 | James E Harrington | 39 | Son | Carpenter | New Hampshire |
| 20 | Ernest Dubois | 64 | Head | Stone Cutter | Canada |
| 21 | Adele M Dubois | 61 | Wife | — | Canada |
| 22 | Mary A Dubois | 24 | Daughter | Spinner | New Hampshire |
| 23 | Henry J Dubois | 21 | Son | Machinist | Canada |
| 24 | Alfred J Dubois | 20 | Son | Laborer | Canada |
| 25 | William H Kimmings | 36 | Head | Machinist | New Hampshire |
| 26 | Laura M Kimmings | 31 | Wife | — | New Hampshire |
| 27 | Yvette S Kimmings | 8 | Daughter | — | New Hampshire |
| 28 | Phyllis G Kimmings | 5 | Daughter | — | New Hampshire |
| 29 | Jean M Kimmings | 0 | Daughter | — | New Hampshire |
| 30 | George G Currier | 35 | Head | Carpenter | New Hampshire |
| 31 | May H Currier | 40 | Wife | — | New Hampshire |
| 32 | Louise M Currier | 11 | Daughter | — | New Hampshire |
| 33 | Christine E Currier | 9 | Daughter | — | New Hampshire |
| 34 | Ralph V Currier | 8 | Son | — | New Hampshire |
| 35 | Catherine M Currier | 5 | Daughter | — | New Hampshire |
| 36 | Nelson P Currier | 3 | Son | — | New Hampshire |
| 37 | George L Spofford | 57 | Head | Farmer | New Hampshire |
| 38 | Mabel L Spofford | 49 | Wife | — | New Hampshire |
| 39 | Frank Little | 65 | Laborer | Laborer | Scotland |
| 40 | John R Bennett | 15 | Boarder | — | New Hampshire |
| 41 | Herbert H Pray | 59 | Boarder | Retired | Massachusetts |
| 42 | Benjamin Mozell | 21 | Laborer | Farm Laborer | New Hampshire |
| 43 | Alex J Robertson | 42 | Head | Quarryman | Sweden |
| 44 | Hannah M Robertson | 41 | Wife | — | Sweden |
| 45 | Beatrice E Robertson | 13 | Daughter | — | New Hampshire |
| 46 | Harry M Richardson | 51 | Head | Inspector | New Hampshire |
| 47 | Myra H Richardson | 47 | Wife | — | Prince Edward Isl |
| 48 | Barbara C Richardson | 8 | Daughter | — | New Hampshire |
| 49 | Dana C Bogart | 17 | Step-son | — | Massachusetts |
| 50 | Geraldine Farrar | 15 | Servant | Housework | New Hampshire |
Pedigree Summary
John + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)