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Mary Alexander — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mercer, Pennsylvania
Our Model Tree links this Mary Alexander across the 1920 and 1930 US Censuses in Mercer, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 11-person household.
Age 15
b. ~1915
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, Pennsylvania |
| Surname | Alexander |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Fairview Township Part Of |
| Est. Birth Year | ~1915 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Alexander | Daughter | — | 15 | ~1915 |
| Dorothy Alexander | Daughter | — | 7 | ~1923 |
| Ruth Alexander | Daughter | — | 11 | ~1919 |
| William Alexander | Head | — | 47 | ~1883 |
| Franklin Alexander | Son | — | 17 | ~1913 |
| Paul Alexander | Son | — | 19 | ~1911 |
| David Alexander | Son | — | 4 | ~1926 |
| Philip Alexander | Son | — | 22 | ~1908 |
| James Alexander | Son | — | 9 | ~1921 |
| Paul Alexander | Son | — | 13 | ~1917 |
| Mary Alexander | Spouse | — | 48 | ~1882 |
Census Appearances
1920
Mercer, Pennsylvania
Daughter, age 5
Mercer, Pennsylvania · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mercer, Pennsylvania
Daughter, age 15
Mercer, Pennsylvania · implied b. ~1915 — 11 household members
| Surname | Alexander |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| 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 Alexander across 2 US Census years (1920 and 1930) in Mercer, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Alexander
Daughter · 1930 · age 15 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Paul Alexander
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Alexander
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Alexander
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Alexander
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Alexander
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Alexander
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Alexander
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Alexander
Sibling · 1930 · age 22
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 — Mercer, Pennsylvania
Open full size
1930 US Federal Census — Mercer, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2076:0428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Sheldon R. Ringet | 27 | Son | Farmer | Pennsylvania |
| 52 | Gladys M. Ringet | 25 | Daughter-in-law | — | Pennsylvania |
| 53 | John S. Rumkle | 27 | Head | Farmer | Pennsylvania |
| 54 | Sarah F. Rumkle | 28 | Wife | — | Pennsylvania |
| 55 | Virginia R. Rumkle | 4 | Daughter | — | Pennsylvania |
| 56 | Aileen L. Rumkle | 3 | Daughter | — | Pennsylvania |
| 57 | Dorothy D. Rumkle | 2 | Daughter | — | Pennsylvania |
| 58 | Betty J. Rumkle | 0 | Daughter | — | Pennsylvania |
| 59 | Donald H. Rumkle | 16 | Brother | Hired Hand | Pennsylvania |
| 60 | William H. Beswick | 54 | Head | Farmer | Pennsylvania |
| 61 | Flora T. Beswick | 47 | Wife | — | Pennsylvania |
| 62 | Ellis T. Beswick | 19 | Son | Laborer | Pennsylvania |
| 63 | Alan D. Beswick | 15 | Son | — | Pennsylvania |
| 64 | Mary E. Beswick | 11 | Daughter | — | Pennsylvania |
| 65 | John L. Beswick | 6 | Son | — | Pennsylvania |
| 66 | George A. Donner | 38 | Head | Farmer | Michigan |
| 67 | Helen M. Donner | 37 | Wife | — | Pennsylvania |
| 68 | Elizabeth M. Donner | 11 | Daughter | — | Pennsylvania |
| 69 | Kathryn J. Donner | 10 | Daughter | — | Pennsylvania |
| 70 | John G. Donner | 7 | Son | — | Pennsylvania |
| 71 | Harry J. Donner | 4 | Son | — | Pennsylvania |
| 72 | Paul E. Donner | 2 | Son | — | Pennsylvania |
| 73 | Harry D. Kifer | 61 | Head | — | Pennsylvania |
| 74 | John J. Wilson | 25 | Son-in-law | Farmer | Ohio |
| 75 | Margaret M. Wilson | 21 | Daughter | — | West Virginia |
| 76 | Thelma R. Wilson | 2 | Grandson | — | Pennsylvania |
| 77 | John A. Wilson | 1 | Grandson | — | Pennsylvania |
| 78 | Margaret D. Wilson | 0 | Granddaughter | — | Pennsylvania |
| 79 | Ray F. Beckman | 39 | Head | Farmer | Ohio |
| 80 | Lulu S. Beckman | 38 | Wife | — | Pennsylvania |
| 81 | Lois E. Beckman | 20 | Daughter | — | Ohio |
| 82 | William H. Beckman | 15 | Son | — | Ohio |
| 83 | Robert E. Beckman | 11 | Son | — | Ohio |
| 84 | Lois L. Beckman | 7 | Daughter | — | Ohio |
| 85 | Leota E. Beckman | 5 | Daughter | — | Ohio |
| 86 | Mary C. Beckman | 3 | Son | — | Ohio |
| 87 | Abraham D. Baker | 53 | Head | Foreman | Tennessee |
| 88 | Catherine M. Baker | 47 | Wife | — | Ohio |
| 89 | William L. Alexander | 47 | Head | Farmer | Pennsylvania |
| 90 | Mary E. Alexander | 48 | Wife | — | Pennsylvania |
| 91 | Philip H. Alexander | 22 | Son | Teacher | Pennsylvania |
| 92 | Paul Alexander | 19 | Son | — | Pennsylvania |
| 93 | Franklin A. Alexander | 17 | Son | — | Pennsylvania |
| 94 | Mary E. Alexander THIS PERSON | 15 | Daughter | — | Pennsylvania |
| 95 | Paul E. Alexander | 13 | Son | — | Pennsylvania |
| 96 | Ruth M. Alexander | 11 | Daughter | — | Pennsylvania |
| 97 | James C. Alexander | 9 | Son | — | Pennsylvania |
| 98 | Dorothy H. Alexander | 7 | Daughter | — | Pennsylvania |
| 99 | David W. Alexander | 4 | Son | — | Pennsylvania |
| 100 | William S. Morford | 51 | Head | Farmer | Pennsylvania |
Related Census Records
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)