MC
Mary Chapman — 1930 US Census Record
Model Tree available1930 United States Federal Census · Crawford, Pennsylvania
Our Model Tree links this Mary Chapman across the 1920, 1930 and 1940 US Censuses in Crawford, Pennsylvania (XGBoost, ~Confirmed), with identified parents Louis & Lewis — first a daughter (b.~1917), then head of a 6-person household.
Age 13
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Crawford, Pennsylvania |
| Surname | Chapman |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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 | Spring Township |
| Est. Birth Year | ~1917 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Chapman | Daughter | — | 13 | ~1917 |
| Louis Chapman | Head | — | 54 | ~1876 |
| James Chapman | Son | — | 16 | ~1914 |
| Harry Chapman | Son | — | 18 | ~1912 |
| Howard Chapman | Son | — | 15 | ~1915 |
| Mary Chapman | Spouse | — | 42 | ~1888 |
Census Appearances
1920
Crawford, Pennsylvania
Daughter, age 3
Crawford, Pennsylvania · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary Belle |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Crawford, Pennsylvania
Daughter, age 13
Crawford, Pennsylvania · implied b. ~1917 — 6 household members
| Surname | Chapman |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| 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 |
1940
Crawford-County, Pennsylvania
Daughter, age 23
Crawford-County, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Marybelle |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Spring Twp. |
| 1935 Residence (County) | Crawford |
| Occupation | Hired Hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 866 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| 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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Chapman (~0.92 confidence) and father Lewis Chapman (~0.92 confidence) and mother Mary Chapman (~0.92 confidence) and mother Mary Chapman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Chapman
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Lewis Chapman
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Mary Chapman
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Mary Chapman
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Chapman
Daughter · 1930 · age 13 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Harry Chapman
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Chapman
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Chapman
Sibling · 1930 · age 15
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 — Crawford, Pennsylvania
Open full size
1930 US Federal Census — Crawford, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2023:0060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton Wilder | 58 | Head | Farmer | Pennsylvania |
| 2 | Edith Wilder | 56 | Wife | — | Pennsylvania |
| 3 | Isabell M Wilder | 84 | Mother | — | Pennsylvania |
| 4 | Arch D Lawrence | 57 | Head | — | Pennsylvania |
| 5 | Mary Lawrence | 61 | Wife | — | New York |
| 6 | Ruth M Lawrence | 34 | Son | — | Pennsylvania |
| 7 | Henry J Fuller | 70 | Head | Salesman | New York |
| 8 | Almeda Fuller | 72 | Wife | — | Pennsylvania |
| 9 | Ed F Lawrence | 59 | Head | Farmer | Pennsylvania |
| 10 | Florence H Lawrence | 58 | Wife | — | Pennsylvania |
| 11 | Bluntshat Lawrence | 76 | Step Mother | — | Vermont |
| 12 | Leon E Hoden | 37 | Head | Farmer | Pennsylvania |
| 13 | Lena L Hoden | 34 | Wife | — | Pennsylvania |
| 14 | Howard D Hoden | 14 | Son | — | Pennsylvania |
| 15 | Francis G Hoden | 9 | Daughter | — | Pennsylvania |
| 16 | Charles D Watson | 60 | Head | Farmer | Pennsylvania |
| 17 | Ettie R Watson | 57 | Wife | — | Pennsylvania |
| 18 | Doris R Watson | 13 | Daughter | — | Pennsylvania |
| 19 | Maxwell L Watson | 11 | Son | — | Pennsylvania |
| 20 | Earl B Payne | 40 | Head | Farmer | Pennsylvania |
| 21 | Eva Payne | 40 | Wife | — | Pennsylvania |
| 22 | Walter H Payne | 18 | Son | Farm Laborer | Pennsylvania |
| 23 | Clyde L Payne | 14 | Son | — | Pennsylvania |
| 24 | Sara J Payne | 12 | Daughter | — | Pennsylvania |
| 25 | Juanita Payne | 7 | Daughter | — | Pennsylvania |
| 26 | Isabelle Payne | 6 | Daughter | — | Pennsylvania |
| 27 | Ernest Payne | 4 | Son | — | Pennsylvania |
| 28 | Ralph J Payne | 2 | Son | — | Pennsylvania |
| 29 | Ida J Payne | 0 | Daughter | — | Pennsylvania |
| 30 | Clyde Houser | 55 | Head | Farmer | Pennsylvania |
| 31 | Katherine Houser | 55 | Wife | — | Pennsylvania |
| 32 | Winifred Houser | 33 | Daughter | Bookkeeper | Pennsylvania |
| 33 | Fred E Burns | 67 | Head | Farmer | Pennsylvania |
| 34 | Sara Burns | 64 | Wife | — | Pennsylvania |
| 35 | Louis H Chapman | 54 | Head | Farmer | Pennsylvania |
| 36 | Mary M Chapman | 42 | Wife | — | Pennsylvania |
| 37 | Harry B Chapman | 18 | Son | Farm Laborer | Pennsylvania |
| 38 | James H Chapman | 16 | Son | — | Pennsylvania |
| 39 | Howard H Chapman | 15 | Son | — | Pennsylvania |
| 40 | Mary Alice Chapman THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 41 | Homer J Whipple | 33 | Head | Helper | Ohio |
| 42 | Gertrude Whipple | 28 | Wife | — | Pennsylvania |
| 43 | Francis S Foster | 53 | Step Mother | — | Pennsylvania |
| 44 | Leon N Cristy | 45 | Head | Farmer | Pennsylvania |
| 45 | Myra J Cristy | 57 | Sister | — | Pennsylvania |
| 46 | Minnie M Cristy | 54 | Sister | — | Pennsylvania |
| 47 | Henry J Rick | 70 | Head | Labour | Pennsylvania |
| 48 | Lydia Rick | 53 | Wife | — | Pennsylvania |
| 49 | Charles S Thornton | 52 | Head | Farmer | Pennsylvania |
| 50 | Marietta Thornton | 51 | Wife | — | New York |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)