SA
Sarah Alexander — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Armstrong, Pennsylvania
Our Model Tree links this Sarah Alexander across the 1930 and 1940 US Censuses in Armstrong, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 6-person household.
Age 11
b. ~1919
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Armstrong, Pennsylvania |
| Surname | Alexander |
| Given Name | Sarah M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Ford City Borough |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| William Alexander | Son | — | 12 | ~1918 |
| John Alexander | Head | — | 40 | ~1890 |
| Ella Alexander | Daughter | — | 9 | ~1921 |
| James Alexander | Son | — | 7 | ~1923 |
| Sarah Alexander | Daughter | — | 11 | ~1919 |
| Ella Alexander | Spouse | — | 38 | ~1892 |
Census Appearances
1930
Armstrong, Pennsylvania
Daughter, age 11
Armstrong, Pennsylvania · implied b. ~1919 — 6 household members
| Surname | Alexander |
| Given Name | Sarah M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Armstrong-County, Pennsylvania
Daughter, age 21
Armstrong-County, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Sara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Kittanning |
| 1935 Residence (County) | Armstrong |
| Occupation | Paster |
| Industry | Leather Manufactory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 572 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Sarah Alexander across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sarah Alexander
Daughter · 1930 · age 11 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
James Alexander
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Alexander
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ella Alexander
Sibling · 1930 · age 9
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
1930 US Federal Census — Armstrong, Pennsylvania
Open full size
1930 US Federal Census — Armstrong, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1993:0945)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Luigi Lazaroff | 40 | Head | Baker | Yugoslavia |
| 52 | Todor Lazaroff | 38 | Wife | None | Yugoslavia |
| 53 | Pete Lazaroff | 5 | Son | None | Pennsylvania |
| 54 | James Lazaroff | 2 | Son | None | Pennsylvania |
| 55 | Mary Lazaroff | 0 | Daughter | None | Pennsylvania |
| 56 | Harry H Mcelheney | 42 | Head | Laborer | Pennsylvania |
| 57 | Nancy J Mcelheney | 32 | Wife | None | Pennsylvania |
| 58 | Jesse J Mcelheney | 11 | Son | None | Pennsylvania |
| 59 | Harry J Mcelheney | 7 | Son | None | Pennsylvania |
| 60 | David A Serene | 37 | Head | Brick Layer | Pennsylvania |
| 61 | Irene P Serene | 31 | Wife | None | Pennsylvania |
| 62 | Thomas A Serene | 11 | Son | None | Pennsylvania |
| 63 | Jack F Serene | 10 | Son | None | Pennsylvania |
| 64 | George Serene | 8 | Son | None | Pennsylvania |
| 65 | August Kracht | 76 | Head | None | Germany |
| 66 | Mary A Kracht | 75 | Wife | None | Germany |
| 67 | Anthony J Troop | 28 | Head | Glass Worker | Pennsylvania |
| 68 | Katherine A Troop | 26 | Wife | None | Czechoslovakia |
| 69 | Eleanor Troop | 3 | Daughter | None | Pennsylvania |
| 70 | Albert V Johnson | 39 | Head | Pipe Fitter | Sweden |
| 71 | Ellen Johnson | 32 | Wife | None | Sweden |
| 72 | Leroy A Johnson | 13 | Son | None | Pennsylvania |
| 73 | Donald R Johnson | 11 | Son | None | Pennsylvania |
| 74 | Bert A Christy | 34 | Head | Potter | W. Virginia |
| 75 | Ola R Christy | 35 | Wife | None | W. Virginia |
| 76 | Roy E Christy | 16 | Son | None | W. Virginia |
| 77 | Pauline R Christy | 13 | Daughter | None | W. Virginia |
| 78 | Bert Jr Christy | 8 | Son | None | W. Virginia |
| 79 | Thomas E Coman | 59 | Head | Laborer | England |
| 80 | Nannie J Coman | 57 | Wife | None | Pennsylvania |
| 81 | John W Alexander | 40 | Head | Moulder | Pennsylvania |
| 82 | Ella E Alexander | 38 | Wife | None | Pennsylvania |
| 83 | William F Alexander | 12 | Son | None | W. Virginia |
| 84 | Sarah M Alexander THIS PERSON | 11 | Daughter | None | Pennsylvania |
| 85 | Ella B Alexander | 9 | Daughter | None | Pennsylvania |
| 86 | James L Alexander | 7 | Son | None | Pennsylvania |
| 87 | Oliver P Dougherty | 59 | Head | Bricklayer | Pennsylvania |
| 88 | Emma Dougherty | 54 | Wife | None | Pennsylvania |
| 89 | Marjorie B Dougherty | 25 | Daughter | None | Pennsylvania |
| 90 | Ralph E Dougherty | 20 | Son | Chauffeur | Pennsylvania |
| 91 | Naomi P Dougherty | 13 | Daughter | None | Pennsylvania |
| 92 | Martha R Dougherty | 29 | Daughter | None | Pennsylvania |
| 93 | Charles J De Haas | 58 | Head | None | Pennsylvania |
| 94 | Mary E De Haas | 54 | Wife | None | Pennsylvania |
| 95 | Edward J De Haas | 11 | Son | None | Pennsylvania |
| 96 | Norman Mauthie | 25 | Head | Laborer | Pennsylvania |
| 97 | Evangeline Mauthie | 22 | Wife | None | Pennsylvania |
| 98 | Lawrence Gaydos | 42 | Head | Laborer | Czechoslovakia |
| 99 | Mary Gaydos | 43 | Wife | Clerk | Czechoslovakia |
| 100 | Lawrence Jr Gaydos | 16 | Son | None | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)