MH
Mary Harrington — 1930 US Census Record
Model Tree available1930 United States Federal Census · Houghton, Michigan
Our Model Tree links this Mary Harrington across the 1910, 1920 and 1930 US Censuses in Houghton, Michigan (XGBoost, ~Confirmed), with identified parents Charles & Daniel — first a daughter (b.~1908), then head of a 10-person household.
Age 22
b. ~1908
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Houghton, Michigan |
| Surname | Harrington |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Teacher |
| Township / Ward | Osceola Location |
| Est. Birth Year | ~1908 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rita Harrington | Daughter | — | 10 | ~1920 |
| Leona Harrington | Daughter | — | 24 | ~1906 |
| Patricia Harrington | Daughter | — | 14 | ~1916 |
| Mary Harrington | Daughter | — | 22 | ~1908 |
| Charles Harrington | Head | — | 55 | ~1875 |
| Annie Harrington | Other | — | 50 | ~1880 |
| James Harrington | Son | — | 8 | ~1922 |
| Francis Harrington | Son | — | 17 | ~1913 |
| John Harrington | Son | — | 4 | ~1926 |
| Joseph Harrington | Son | — | 20 | ~1910 |
Census Appearances
1910
Houghton, Michigan
Daughter, age 1
Houghton, Michigan · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Houghton, Michigan
Daughter, age 11
Houghton, Michigan · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Houghton, Michigan
Daughter, age 22
Houghton, Michigan · implied b. ~1908 — 10 household members
| Surname | Harrington |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Mary Harrington across 3 US Census years (1910, 1920 and 1930) in Houghton, Michigan, using XGBoost record linkage. Identified parents: father Charles Harrington (~0.92 confidence) and father Daniel Harrington (~0.92 confidence) and mother Margaret Harrington (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Harrington
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Daniel Harrington
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Margaret Harrington
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Harrington
Daughter · 1930 · age 22 · b. ~1908 · Michigan
★ You are viewing this record
Sibling
Leona Harrington
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Harrington
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Harrington
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Harrington
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Harrington
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harrington
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Harrington
Sibling · 1930 · age 10
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 — Houghton, Michigan
Open full size
1930 US Federal Census — Houghton, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel994:0173)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Aho | 40 | Head | Miner | Finland |
| 2 | Jennie Aho | 32 | Wife-H | — | Michigan |
| 3 | Charles Harrington | 55 | Head | Fireman | Michigan |
| 4 | Annie Harrington | 50 | Wife-H | — | Michigan |
| 5 | Leona Harrington | 24 | Daughter | Teacher | Michigan |
| 6 | Mary Harrington THIS PERSON | 22 | Daughter | Teacher | Michigan |
| 7 | Joseph Harrington | 20 | Son | Salesman | Michigan |
| 8 | Francis Harrington | 17 | Son | Laborer | Michigan |
| 9 | Patricia Harrington | 14 | Daughter | — | Michigan |
| 10 | Rita Harrington | 10 | Daughter | — | Michigan |
| 11 | James Harrington | 8 | Son | — | Michigan |
| 12 | John Harrington | 4 | Son | — | Michigan |
| 13 | Mary Johnson | 74 | Head-H | Housekeeper | Norway |
| 14 | Charles Johnson | 41 | Son | Miner | Michigan |
| 15 | Harry Johnson | 39 | Son | Miner | Michigan |
| 16 | Minnie Johnson | 37 | Daughter | Housework | Michigan |
| 17 | Lydia Johnson | 32 | Daughter | Housework | Michigan |
| 18 | Robert Johnson | 13 | Grandson | — | Michigan |
| 19 | Margaret Johnson | 15 | Granddaughter | — | Michigan |
| 20 | Irene Johnson | 10 | Granddaughter | — | Michigan |
| 21 | John Binks | 37 | Head | Police | Michigan |
| 22 | Jennie Binks | 32 | Wife-H | — | Michigan |
| 23 | Agnes Binks | 12 | Daughter | — | Michigan |
| 24 | Nicholas Binks | 11 | Son | — | Michigan |
| 25 | Marcella Binks | 10 | Daughter | — | Michigan |
| 26 | Dorothy Binks | 8 | Daughter | — | Michigan |
| 27 | Charlotte Binks | 7 | Daughter | — | Michigan |
| 28 | Lillian Binks | 6 | Daughter | — | Michigan |
| 29 | Clarence Binks | 4 | Son | — | Michigan |
| 30 | John Binks | 2 | Son | — | Michigan |
| 31 | Lois Binks | 0 | Daughter | — | Michigan |
| 32 | William Edward | 50 | Head | Miner | Michigan |
| 33 | Majorie Edward | 45 | Wife-H | — | Michigan |
| 34 | John Edward | 20 | Son | Miner | Michigan |
| 35 | Edwin Edward | 17 | Son | — | Michigan |
| 36 | Evelyn Edward | 13 | Daughter | — | Michigan |
| 37 | John Lamanen | 79 | Head | Laborer | Finland |
| 38 | Henry Lamanen | 56 | Son | Miner | Michigan |
| 39 | Elmer Lamanen | 26 | Son | — | Michigan |
| 40 | Emil Paulson | 44 | Head | Mechanic | Finland |
| 41 | Amelia Paulson | 45 | Wife-H | — | Finland |
| 42 | Bertha Paulson | 23 | Daughter | Teacher | Michigan |
| 43 | Edwin Paulson | 21 | Son | Ginsmith | Michigan |
| 44 | Nick Mlinar | 53 | Head | Miner | Austria |
| 45 | Antoinetta Mlinar | 52 | Wife-H | — | Austria |
| 46 | Antoinette Mlinar | 20 | Daughter | Housework | Michigan |
| 47 | Nick Mlinar | 18 | Son | — | Michigan |
| 48 | Frank Mlinar | 17 | Son | — | Michigan |
| 49 | George Mlinar | 15 | Son | — | Michigan |
| 50 | Albert Mlinar | 15 | Son | — | Michigan |
Pedigree Summary
Mary + 7 siblings
Gen 1 · 3 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)