MG
Mary Gardner — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Merrimack, New Hampshire
Our Model Tree links this Mary Gardner across the 1910, 1920 and 1930 US Censuses in Merrimack, New Hampshire (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 4-person household.
Age 52
b. ~1868
Female
Head
Born: New Hampshire
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Merrimack, New Hampshire |
| Surname | Gardner |
| Given Name | Mary S. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Andover Town |
| Est. Birth Year | ~1868 |
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.
4 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Gardner | Daughter | — | 13 | ~1907 |
| Mary Gardner | Head | — | 52 | ~1868 |
| Everett Gardner | Son | — | 22 | ~1898 |
| Allen Gardner | Son | — | 15 | ~1905 |
Census Appearances
1910
Merrimack, New …
Spouse, age 43
Merrimack, New Hampshire · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Years Married | 27 |
| Children Born | 0 |
| Children Living | 0 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Merrimack, New …
Head, age 52
Merrimack, New Hampshire · implied b. ~1868 — 4 household members
| Surname | Gardner |
| Given Name | Mary S. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Other, age 63
Merrimack, New Hampshire · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Mary |
| Relationship to Head | Aunt |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Age at First Marriage | 18 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| 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 Mary Gardner across 3 US Census years (1910, 1920 and 1930) in Merrimack, New Hampshire, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gardner
Head · 1920 · age 52 · b. ~1868 · New Hampshire
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Merrimack, New Hampshire
Open full size
1920 US Federal Census — Merrimack, New Hampshire
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1012unit:0587)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Henderson | 35 | Boarder | Laborer | Massachusetts |
| 2 | James Thompson | 16 | Boarder | Laborer | New Hampshire |
| 3 | Arthur Dee | 30 | Boarder | Laborer | Massachusetts |
| 4 | John A. Hacking | 44 | Boarder | Laborer | Massachusetts |
| 5 | Albert G. Cummings | 60 | Boarder | Laborer | Canada |
| 6 | John B. Lupien | 70 | Head | Laborer | Vermont |
| 7 | Mary S. Gardner THIS PERSON | 52 | Head | — | New Hampshire |
| 8 | Everett E. Gardner | 22 | Son | Laborer | New Hampshire |
| 9 | Allen G. Gardner | 15 | Son | — | Massachusetts |
| 10 | Evelyn E. Gardner | 13 | Daughter | — | New Hampshire |
| 11 | Samuel B. Currier | 55 | Head | Section-Hand | New Hampshire |
| 12 | Mary E. Currier | 55 | Wife | — | New York |
| 13 | Amelia P. Currier | 26 | Daughter | Teacher | Massachusetts |
| 14 | Samuel B. Jr. Currier | 18 | Son | Janitor | Massachusetts |
| 15 | Albert Emerson | 77 | Head | — | New Hampshire |
| 16 | George W. Keniston | 65 | Head | Farmer | New Hampshire |
| 17 | Mary A. Keniston | 48 | Wife | — | New Hampshire |
| 18 | John W. Keniston | 25 | Son | Laborer | New Hampshire |
| 19 | Elizabeth G. Keniston | 14 | Daughter | — | New Hampshire |
| 20 | George W. Jr. Keniston | 11 | Son | — | New Hampshire |
| 21 | George F. Whitney | 75 | X | Laborer | New Hampshire |
| 22 | Ellen J. Calley | 19 | X | — | New Hampshire |
| 23 | Morris M. Calley | 21 | X | Laborer | New Hampshire |
| 24 | Donald M. Calley | 5 | X | — | New Hampshire |
| 25 | Jake Perkins | 28 | X | Laborer | New Hampshire |
| 26 | Charles A. Keniston | 27 | Head | Laborer | New Hampshire |
| 27 | Bertha H. Keniston | 22 | Wife | — | New Hampshire |
| 28 | Marion M. Keniston | 2 | Daughter | — | New Hampshire |
| 29 | Marion May Keniston | 2 | Daughter | — | New Hampshire |
| 30 | Katherine L. Keniston | 1 | Daughter | — | New Hampshire |
| 31 | William H. Lucas | 74 | Head | Farmer | New Hampshire |
| 32 | Calvin G. Currier | 51 | Head | Farmer | New Hampshire |
| 33 | Mabel L. Currier | 39 | Wife | — | Massachusetts |
| 34 | William B. Jenness | 50 | Head | Millwright | Canada |
| 35 | Christina Jenness | 36 | Wife | — | New Hampshire |
| 36 | Bertha V. Jenness | 13 | Daughter | — | New Hampshire |
| 37 | Roy W. Jenness | 11 | Son | — | New Hampshire |
| 38 | Lloyd Jenness | 6 | Son | — | New Hampshire |
| 39 | George Perkins | 54 | Head | Laborer | New Hampshire |
| 40 | Charles H. Perkins | 74 | Father | — | New Hampshire |
| 41 | Rena Downs | 14 | Step-Daughter | — | New Hampshire |
| 42 | Herbert S. York | 50 | Head | Laborer | New Hampshire |
| 43 | Ruby P. York | 30 | Wife | — | New Hampshire |
| 44 | Oren F. Cross | 58 | Head | Farmer | New Hampshire |
| 45 | Ruth A. Cross | 20 | Daughter | — | New Hampshire |
| 46 | Hiram H. Cross | 90 | Father | — | New Hampshire |
| 47 | Carry R. Cross | 4 | Granddaughter | — | New Hampshire |
| 48 | Dallas W. Calley | 27 | Head | Laborer | New Hampshire |
| 49 | Rosa J. Calley | 22 | Wife | — | New Hampshire |
| 50 | Madeline M. Calley | 4 | Daughter | — | New Hampshire |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)