MD
Mary Davidson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegany, New York
Our Model Tree links this Mary Davidson across the 1900, 1910 and 1920 US Censuses in Allegany, New York (XGBoost, ~Confirmed) — first a head (b.~1835), then head of a 3-person household.
Age 85
b. ~1835
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegany, New York |
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1843 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Angelica Village |
| Est. Birth Year | ~1835 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jennie Davidson | Daughter | — | 56 | ~1864 |
| Alice Davidson | Daughter | — | 48 | ~1872 |
| Mary Davidson | Head | — | 85 | ~1835 |
Census Appearances
1900
Allegany, New …
Spouse, age 66
Allegany, New York · implied b. ~1834 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Feb |
| Birth Year | 1834 |
| Year of Immigration | 1849 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Allegany, New …
Spouse, age 75
Allegany, New York · implied b. ~1835 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 15 |
| Children Born | 0 |
| Children Living | 0 |
| Year of Immigration | 1850 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Allegany, New …
Head, age 85
Allegany, New York · implied b. ~1835 — 3 household members
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 85 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1843 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Davidson across 3 US Census years (1900, 1910 and 1920) in Allegany, New York, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Davidson
Head · 1920 · age 85 · b. ~1835 · New York
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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 — Allegany, New York
Open full size
1920 US Federal Census — Allegany, New York
Page Contents
22 people indexed on this census page (ia:1920:14thcensusofpopu1084unit:0756)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Everitt C Hoffman | 17 | son | Boiler Maker | New York |
| 52 | Lincon Hoffman | 13 | son | None | New York |
| 53 | Harold E Hoffman | 7 | son | None | New York |
| 54 | Marie Hoffman | 4 | daughter | None | New York |
| 55 | Christopher Hoffman | 74 | father | Laborer | Germany |
| 56 | Clair L Beardsley | 26 | head | Farmer | New York |
| 57 | Lena M Beardsley | 20 | wife | None | New York |
| 58 | Sarah E Trowbridge | 70 | head | None | New York |
| 59 | Warren E Riley | 36 | boarder | Fireman | New York |
| 60 | Serena Humphrey | 67 | head | None | New York |
| 61 | Mattie Humphrey | 47 | daughter | None | New York |
| 62 | Frank S Conners | 48 | son | Machinist | New York |
| 63 | Harry C Humphrey | 52 | son in law | Machinist Runner | Pennsylvania |
| 64 | Mary Davidson THIS PERSON | 85 | head | None | Ireland |
| 65 | Jennie E Davidson | 56 | daughter | Dressmaker | New York |
| 66 | Alice E Davidson | 48 | daughter | None | New York |
| 67 | Charles A Hofman | 49 | head | Boiler Maker | New York |
| 68 | Emma S Hofman | 50 | wife | None | New York |
| 69 | Willmine Mccabe | 82 | head | None | New York |
| 70 | Mary E Warren | 82 | servant | Servant | New York |
| 71 | Peter Ross | 77 | head | Laborer | Italy |
| 72 | Lewis F Stephens | 40 | head | Laborer | New York |
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)