JD
John Davidson — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Davidson across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1848), then head of a 3-person household.
Age 62
b. ~1848
Male
Head
Born: Pennsylvania
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | Allegheny, Pennsylvania |
| Surname | Davidson |
| Given Name | John M. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 35 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | manager |
| Industry | filter Co. |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Manager |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1848 |
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 1910 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Davidson | Head | — | 62 | ~1848 |
| Willard Davidson | Son | — | 32 | ~1878 |
| Mrs Davidson | Spouse | — | 60 | ~1850 |
Census Appearances
1900
Allegheny, Pennsylvania
Head, age 52
Allegheny, Pennsylvania · implied b. ~1848 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | John M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Birth Month | July |
| Birth Year | 1848 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Mfr. Filters |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Head, age 62
Allegheny, Pennsylvania · implied b. ~1848 — 3 household members
| Surname | Davidson |
| Given Name | John M. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 35 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | manager |
| Industry | filter Co. |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Other, age 72
Allegheny, Pennsylvania · implied b. ~1848 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | John M. |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Superintendent |
| Industry | Manufacturing Plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 John Davidson across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
John Davidson
Head · 1910 · age 62 · b. ~1848 · 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
46 people indexed on this census page (ia:1910:13thcensus1910po1308unit:0710)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Catherine Geyer | 65 | wife | None | New Jersey |
| 3 | James Geyer | 45 | son | Manufacturer | Pennsylvania |
| 4 | Janet Brown | 22 | servant | Servant | Pennsylvania |
| 5 | Charles Horst | 55 | head | Wholesale Merchant | Pennsylvania |
| 6 | Ursula Horst | 47 | wife | None | Switz (German) |
| 7 | Anna A. Horst | 24 | daughter | None | Pennsylvania |
| 8 | Gertrude Horst | 20 | daughter | None | Pennsylvania |
| 9 | Arthur Horst | 18 | son | None | Pennsylvania |
| 10 | Esther Horst | 16 | daughter | None | Pennsylvania |
| 11 | Barbara Brunner | 41 | sister in law | Servant | Switz (German) |
| 12 | Bridget Sweeney | 67 | head | None | Ire (English) |
| 13 | Patrick H. Sweeney | 42 | son | Axle Turner | Pennsylvania |
| 14 | Edward F. Sweeney | 39 | son | Foreman | Pennsylvania |
| 15 | Catherine Sweeney | 34 | daughter | None | Pennsylvania |
| 16 | Edward F. Sweeney | 17 | grandson | Pattern Maker | Pennsylvania |
| 17 | Catherine Brown | 44 | niece | None | Pennsylvania |
| 18 | Mary Kennedy | 60 | sister | None | Ire (English) |
| 19 | James H. Sweeney | 30 | son | Bookkeeper | Pennsylvania |
| 20 | Margaret Horst | 48 | head | None | Pennsylvania |
| 21 | Anna Horst | 45 | sister | None | Pennsylvania |
| 22 | Christina Horst | 40 | sister | None | Pennsylvania |
| 23 | Lena B. Mohler | 53 | head | Dress-Maker | West Virginia |
| 24 | George S. Mohler | 20 | son | Agent | Virginia |
| 25 | Earl M. Mohler | 14 | daughter|son | None | Virginia |
| 26 | Selby H. Stonberg | 28 | nephew | Clerk | West Virginia |
| 27 | Sophia C. Davis | 66 | head | None | Pennsylvania |
| 28 | Harriet Davis | 34 | daughter in law | Retail Merchant | Eng |
| 29 | Mary Davis | 9 | granddaughter | None | Pennsylvania |
| 30 | Clara Davis | 6 | granddaughter | None | Pennsylvania |
| 33 | Harriet Stocker | 65 | daughter in law | None | Can (English) |
| 34 | Wm. V. Snis | 27 | head | Interpreter | Colorado |
| 35 | May C. Snis | 10 | daughter | None | Pennsylvania |
| 36 | Edward Snis | 6 | son | None | Pennsylvania |
| 37 | Mrs. Lucia M. Wilcox | 48 | servant | Servant | Pennsylvania |
| 38 | Wm. J. Murphy | 35 | head | Foreman | Pennsylvania |
| 39 | Mrs. Wm. J. Murphy | 35 | wife | None | Pennsylvania |
| 40 | Jacob S. Bowman | 54 | head | Clerk | Ohio |
| 41 | Mrs. J. S. Bowman | 45 | wife | None | Pennsylvania |
| 42 | Wm. E. Motheral | 25 | head | Salesman | Pennsylvania |
| 43 | Mrs. Gladys Motheral | 24 | wife | None | Virginia |
| 44 | H. H. Eisbert | 34 | head | Machinist | Pennsylvania |
| 45 | Mrs. H. H. Eisbert | 32 | wife | None | Pennsylvania |
| 46 | John M. Davidson THIS PERSON | 62 | head | Manager | Pennsylvania |
| 47 | Mrs. Elizabeth Davidson | 60 | wife | None | Pennsylvania |
| 48 | Willard L. Davidson | 32 | son | Visit Merchant | Pennsylvania |
| 50 | Chas. G. Graham | 36 | head | Laborer | 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)