MI
Mary Irwin — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Irwin across the 1900 and 1910 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1837), then head of a 8-person household.
Age 73
b. ~1837
Female
Head
Born: Pennsylvania
Widowed
1910 Census Record Details
| Census Year | 1910 |
| Location | Allegheny, Pennsylvania |
| Surname | Irwin |
| Given Name | Mary S |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Years Married | 9 |
| Children Born | 5 |
| Children Living | Pennsylvania |
| Father's Birthplace | Maryland |
| Additional Details | |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1837 |
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.
8 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Dooly | Other | — | 16 | ~1894 |
| Martha Irwin | Other | — | 65 | ~1845 |
| Martha Irwin | Daughter | — | 49 | ~1861 |
| Edwin Degraver | Other | — | 37 | ~1873 |
| A Irwin | Son | — | 50 | ~1860 |
| Rebecca Irwin | Daughter | — | 52 | ~1858 |
| Mary Irwin | Head | — | 73 | ~1837 |
| Mary Irwin | Daughter | — | 39 | ~1871 |
Census Appearances
1900
Allegheny, Pennsylvania
Spouse, age 63
Allegheny, Pennsylvania · implied b. ~1837 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | Mrs. Harriet |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Birth Month | Oct |
| Birth Year | 1837 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Head, age 73
Allegheny, Pennsylvania · implied b. ~1837 — 8 household members
| Surname | Irwin |
| Given Name | Mary S |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Years Married | 9 |
| Children Born | 5 |
| Children Living | Pennsylvania |
| Father's Birthplace | Maryland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Irwin across 2 US Census years (1900 and 1910) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Irwin
Head · 1910 · age 73 · b. ~1837 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Allegheny, Pennsylvania
Open full size
1910 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po1302unit:1010)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alice B Snyder | 20 | Daughter | — | Pennsylvania |
| 52 | Edward Snyder | 18 | Son | — | Pennsylvania |
| 53 | Louie C Barton | 54 | Head | Lawyer | Pennsylvania |
| 54 | Ada J Barton | 47 | Wife | — | Pennsylvania |
| 55 | John Barton | 25 | Son | Collector | Pennsylvania |
| 56 | Louie C Jr. Barton | 23 | Son | — | Pennsylvania |
| 57 | Mary S Irwin THIS PERSON | 73 | Head | — | Pennsylvania |
| 58 | Rebecca T Irwin | 52 | Daughter | — | Pennsylvania |
| 59 | A. Charles Irwin | 50 | Son | Clerk | Pennsylvania |
| 60 | Martha T Irwin | 49 | Daughter | — | Pennsylvania |
| 61 | Mary H Irwin | 39 | Daughter | Clerk | Pennsylvania |
| 62 | Martha T Irwin | 65 | Sister | — | Pennsylvania |
| 63 | Edwin J Degraver | 37 | Brother | Clerk | Missouri |
| 64 | Mary L Dooly | 16 | Servant | Maid | Virginia |
| 65 | George S Mccullough | 56 | Head | Shipper | Pennsylvania |
| 66 | Sarah J Mccullough | 55 | Wife | — | Pennsylvania |
| 67 | Samuel R Mcclure | 40 | Head | Whol. Merchant | Michigan |
| 68 | Ida B Mcclure | 37 | Wife | Manager | Pennsylvania |
| 69 | Jean Mcclure | 9 | Daughter | — | Pennsylvania |
| 70 | Charles S Daily | 44 | Head | Salesman | Pennsylvania |
| 71 | Mary L Daily | 34 | Wife | — | New Jersey |
| 72 | Ellen J Daily | 15 | Daughter | — | Pennsylvania |
| 73 | Charles W Daily | 13 | Son | — | Pennsylvania |
| 74 | Louis F Daily | 11 | Son | — | Pennsylvania |
| 75 | Joan B Daily | 8 | Son | — | Pennsylvania |
| 76 | Mary L Daily | 6 | Daughter | — | Pennsylvania |
| 77 | Elizabeth Daily | 5 | Daughter | — | Pennsylvania |
| 78 | Clarence T Stewart | 36 | Head | Purchas. Agent | Pennsylvania |
| 79 | Lola C Stewart | 36 | Wife | — | Pennsylvania |
| 80 | M. Eleanor Stewart | 5 | Daughter | — | Pennsylvania |
| 81 | Robert S Crawford | 41 | Head | Salesman | Pennsylvania |
| 82 | Alice M Crawford | 46 | Sister | — | Pennsylvania |
| 83 | Robert S Crawford | 21 | Nephew | — | Pennsylvania |
| 84 | Joseph D Crawford | 17 | Nephew | — | Pennsylvania |
| 85 | Margaret E West | 37 | Servant | Maid | N. Carolina |
| 86 | Harry Adams | 36 | Head | Whol. Merchant | Pennsylvania |
| 87 | Lillian Adams | 27 | Wife | — | Pennsylvania |
| 88 | Earl M Adams | 6 | Son | — | Pennsylvania |
| 89 | Dorothy Adams | 0 | Daughter | — | Pennsylvania |
| 90 | Pauline Stadwick | 22 | Servant | Maid | Pennsylvania |
| 91 | Theodore A Drumm | 32 | Head | Shipper | Illinois |
| 92 | John Drumm | 25 | Brother | Salesman | Illinois |
| 93 | Richard F Drumm | 15 | Brother | — | Indiana |
| 94 | Margaret Drumm | 25 | Sister | Dressmaker | Illinois |
| 95 | Katherine Drumm | 23 | Sister | — | Illinois |
| 96 | Emma B Drumm | 22 | Sister | Milliner | Illinois |
| 97 | Bertha Ealon | 49 | Aunt | Teacher | Ger. |
| 98 | Albert J Sweeney | 35 | Head | Pass. & Frgt. | Pennsylvania |
| 99 | Jessie M Sweeney | 30 | Wife | — | Pennsylvania |
| 100 | Jean H Sweeney | 1 | Daughter | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)