MU
Mary Underwood — 1910 US Census Record
Model Tree available1910 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Underwood across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Ezra & Margaret — first a daughter (b.~1900), then head of a 6-person household.
Age 10
b. ~1900
Female
Daughter
Born: Pennsylvania
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Allegheny, Pennsylvania |
| Surname | Underwood |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Moon Township |
| Est. Birth Year | ~1900 |
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.
6 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Underwood | Son | — | 20 | ~1890 |
| Lilla Underwood | Daughter | — | 16 | ~1894 |
| Ezra Underwood | Head | — | 50 | ~1860 |
| Charles Underwood | Son | — | 17 | ~1893 |
| Margaret Underwood | Spouse | — | 44 | ~1866 |
| Mary Underwood | Daughter | — | 10 | ~1900 |
Census Appearances
1910
Allegheny, Pennsylvania
Daughter, age 10
Allegheny, Pennsylvania · implied b. ~1900 — 6 household members
| Surname | Underwood |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 20
Allegheny, Pennsylvania · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Artist |
| Industry | Commercial |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 30
Allegheny, Pennsylvania · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | Mildred R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Artist |
| Industry | Engraving |
| Class of Worker | W |
| Can Read/Write | 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 Mary Underwood across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Ezra Underwood (~0.92 confidence) and mother Margaret Underwood (~0.92 confidence) and father Herbert Underwood (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ezra Underwood
b. ~1860
Source father
● Household
· direct · ~0.92
Mother
Margaret Underwood
b. ~1866
Source mother
● Household
· direct · ~0.92
Father
Herbert Underwood
b. ~1873
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Underwood
Daughter · 1910 · age 10 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Lilla Underwood
Sibling · 1910 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Underwood
Sibling · 1910 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Underwood
Sibling · 1910 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
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:1910:13thcensus1910po1296unit:0195)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Simmons | 7 | Daughter | — | Pennsylvania |
| 2 | Anna M. Simmons | 3 | Daughter | — | Pennsylvania |
| 3 | Henry J. Simmons | 0 | Son | — | Pennsylvania |
| 4 | Frank C. Simmons | 25 | Son | Laborer | Pennsylvania |
| 5 | William Simmons | 67 | Brother | — | Pennsylvania |
| 6 | Ezra P. Underwood | 50 | Head | Carpenter | Pennsylvania |
| 7 | Margaret Underwood | 44 | Wife | — | Pennsylvania |
| 8 | Robert S. Underwood | 20 | Son | Farmer | Pennsylvania |
| 9 | Charles E. Underwood | 17 | Son | Farm Laborer | Pennsylvania |
| 10 | Lilla M. Underwood | 16 | Daughter | — | Pennsylvania |
| 11 | Mary S. Underwood THIS PERSON | 10 | Daughter | — | Pennsylvania |
| 12 | George Moser | 43 | Head | Farmer | Germany |
| 13 | Alice M. Moser | 36 | Wife | — | Pennsylvania |
| 14 | Lester E. Moser | 15 | Son | Farm Laborer | Pennsylvania |
| 15 | John Moser | 12 | Son | — | Pennsylvania |
| 16 | Margaret J. Moser | 10 | Daughter | — | Pennsylvania |
| 17 | Eugene Moser | 8 | Son | — | Pennsylvania |
| 18 | Alice M. Moser | 6 | Daughter | — | Pennsylvania |
| 19 | Ruth M. Moser | 4 | Daughter | — | Pennsylvania |
| 20 | Sadie E. Moser | 1 | Daughter | — | Pennsylvania |
| 21 | Charles N. Daily | 58 | Head | Contracting Agent | Pennsylvania |
| 22 | Florence M. Daily | 37 | Wife | — | Pennsylvania |
| 23 | Susan S. Daily | 31 | Daughter | — | Ohio |
| 24 | John H. M. Daily | 22 | Son | Clerk | Pennsylvania |
| 25 | Charlotte C. Daily | 20 | Daughter | — | Pennsylvania |
| 26 | Philip S. Daily | 18 | Son | — | Pennsylvania |
| 27 | Dorothy S. Daily | 5 | Daughter | — | Pennsylvania |
| 28 | Virginia C. Daily | 3 | Daughter | — | Pennsylvania |
| 29 | Elizabeth S. Daily | 1 | Daughter | — | Pennsylvania |
| 30 | Margaret S. Daily | 1 | Daughter | — | Pennsylvania |
| 31 | Wendell P. Daily | 26 | Head | Solicitor | Pennsylvania |
| 32 | Lydia F. Daily | 32 | Wife | — | Maryland |
| 33 | William Scott | 41 | Head | Physician | Pennsylvania |
| 34 | Sarah G. Scott | 36 | Wife | — | Pennsylvania |
| 35 | William G. Scott | 10 | Son | — | Pennsylvania |
| 36 | George E. Scott | 10 | Son | — | Pennsylvania |
| 37 | Lucile M. Scott | 9 | Daughter | — | Pennsylvania |
| 38 | Grace F. Scott | 7 | Daughter | — | Pennsylvania |
| 39 | Winfield S. Means | 58 | Head | Farmer | Pennsylvania |
| 40 | Mary J. Means | 57 | Wife | — | Pennsylvania |
| 41 | George S. Means | 31 | Son | Farm Laborer | Pennsylvania |
| 42 | John Means | 24 | Son | Plumber | Pennsylvania |
| 43 | Esther M. Means | 20 | Daughter | Stenographer | Pennsylvania |
| 44 | Albert H. Clyke | 50 | Head | Merchant | Pennsylvania |
| 45 | Annie D. Clyke | 47 | Wife | — | Pennsylvania |
| 46 | William W. Rouzer | 40 | Head | Merchant | Pennsylvania |
| 47 | Rachel Rouzer | 41 | Wife | — | Pennsylvania |
| 48 | Clyde R. Rouzer | 14 | Son | — | Pennsylvania |
| 49 | Lula E. Rouzer | 7 | Daughter | — | Pennsylvania |
| 50 | Benton H. Daily | 25 | Head | Millwright | Pennsylvania |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)