MH
Mary Hamilton — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Hamilton across the 1900, 1910 and 1920 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1853), then head of a 3-person household.
Age 67
b. ~1853
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Philadelphia, Pennsylvania |
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1853 |
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 |
|---|---|---|---|---|
| Mary Hamilton | Daughter | — | 36 | ~1884 |
| Mary Hamilton | Head | — | 67 | ~1853 |
| James Hamilton | Son | — | 23 | ~1897 |
Census Appearances
1900
Philadelphia, Pennsylvania
Spouse, age 41
Philadelphia, Pennsylvania · implied b. ~1859 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Oct |
| Birth Year | 1859 |
| Year of Immigration | 1880 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Philadelphia, Pennsylvania
Spouse, age 56
Philadelphia, Pennsylvania · implied b. ~1854 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 37 |
| Children Born | 2 |
| Children Living | 1 |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Philadelphia, Pennsylvania
Head, age 67
Philadelphia, Pennsylvania · implied b. ~1853 — 3 household members
| Surname | Hamilton |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| 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 Hamilton across 3 US Census years (1900, 1910 and 1920) in Philadelphia, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Hamilton
Head · 1920 · age 67 · b. ~1853 · Pennsylvania
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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 — Philadelphia, Pennsylvania
Open full size
1920 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1638unit:0978)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Francis Mcbride | 55 | Head | — | Ireland |
| 52 | Margaret Mcbride | 14 | Daughter | Stitcher | Pennsylvania |
| 53 | Michael J Mcbride | 16 | Son | Helper | Pennsylvania |
| 54 | Mary M Mcbride | 13 | Daughter | — | Pennsylvania |
| 55 | Michael Rourke | 53 | Head | Fireman | Ireland |
| 56 | Mary Rourke | 51 | Wife | — | Ireland |
| 57 | Michael Rourke | 25 | Son | Chauffeur | Pennsylvania |
| 58 | Martin Rourke | 21 | Son | Chauffeur | Pennsylvania |
| 59 | Annie Rourke | 17 | Daughter | Operator | Pennsylvania |
| 60 | James Rourke | 15 | Son | — | Pennsylvania |
| 61 | Hugh Hagen | 62 | Head | Watchman | Ireland |
| 62 | Rose Hagen | 60 | Wife | — | Ireland |
| 63 | John Hagen | 31 | Son | Helper | Ireland |
| 64 | Hugh Hagen | 28 | Son | Helper | Ireland |
| 65 | Annie Hagen | 22 | Daughter | Knitter | Ireland |
| 66 | Mary Hagen | 20 | Daughter | Clerk | Ireland |
| 67 | Ruth Hagen | 16 | Daughter | — | Ireland |
| 68 | Patrick Dugan | 34 | Head | Stillman | Ireland |
| 69 | Nellie Dugan | 35 | Wife | — | Ireland |
| 70 | Thomas Dugan | 11 | Son | — | Pennsylvania |
| 71 | Frank Dugan | 9 | Son | — | Pennsylvania |
| 72 | James Dugan | 6 | Son | — | Pennsylvania |
| 73 | Helen Dugan | 4 | Daughter | — | Pennsylvania |
| 74 | Patrick Dugan | 2 | Son | — | Pennsylvania |
| 75 | Nellie Dugan | 0 | Daughter | — | Pennsylvania |
| 76 | Michael Hagen | 42 | Brother-in-law | Stillman | Ireland |
| 77 | Hugh Callahan | 55 | Head | Paver | Ireland |
| 78 | Mary Callahan | 50 | Wife | — | Ireland |
| 79 | Joseph Callahan | 19 | Son | Pipe Fitter | Pennsylvania |
| 80 | Mary Callahan | 15 | Daughter | — | Pennsylvania |
| 81 | John Mullin | 25 | Step-son | Sales Agent | Pennsylvania |
| 82 | Bridget Heffernan | 72 | Mother-in-law | — | Ireland |
| 83 | Helen Heffernan | 39 | Sister-in-law | Waitress | Ireland |
| 84 | Andrew L Smith | 51 | Head | Janitor | Pennsylvania |
| 85 | Louisa Smith | 38 | Wife | — | Pennsylvania |
| 86 | Marion Smith | 19 | Daughter | Baller | Pennsylvania |
| 87 | Mildred Smith | 18 | Daughter | Stenographer | Pennsylvania |
| 88 | Andrew Smith | 15 | Son | — | Pennsylvania |
| 89 | William Smith | 12 | Son | — | Pennsylvania |
| 90 | Dorothy Smith | 3 | Daughter | — | Pennsylvania |
| 91 | John Kneller | 62 | Head | Butcher | Germany |
| 92 | Clara V Kneller | 44 | Wife | — | Pennsylvania |
| 93 | Elizabeth Malone | 22 | Daughter | — | Pennsylvania |
| 94 | John E Malone | 2 | Grandson | — | Pennsylvania |
| 95 | Edward J Malone | 21 | Son-in-law | Engineer | Pennsylvania |
| 96 | Phillip J Shea | 47 | Head | Undertaker | Pennsylvania |
| 97 | John Shea | 17 | Son | — | Pennsylvania |
| 98 | Mary Hamilton THIS PERSON | 67 | Head | — | Ireland |
| 99 | Mary Hamilton | 36 | Daughter | Operator | Ireland |
| 100 | James Hamilton | 23 | Son | Plasterer | Pennsylvania |
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)