MP
Mary Phelps — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Ohio
Our Model Tree links this Mary Phelps across the 1930 and 1940 US Censuses in Lawrence-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Ohio |
| Surname | Phelps |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Ironton City |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Occupation | Lab. helper |
| Industry | Dept. of Agric. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Lab. Helper |
| Township / Ward | Ironton City |
| 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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Phelps | Daughter | — | 23 | ~1917 |
| Hilda Phelps | Spouse | — | 43 | ~1897 |
| John Phelps | Son | — | 10 | ~1930 |
| James Phelps | Son | — | 18 | ~1922 |
| Margaret Phelps | Daughter | — | 13 | ~1927 |
| Jonah Phelps | Head | — | 46 | ~1894 |
Census Appearances
1930
Lawrence, Ohio
Daughter, age 12
Lawrence, Ohio · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Phelps |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lawrence-County, Ohio
Daughter, age 23
Lawrence-County, Ohio · implied b. ~1917 — 6 household members
| Surname | Phelps |
| Given Name | Mary Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Ironton City |
| 1935 Residence (County) | Lawrence |
| Occupation | Lab. helper |
| Industry | Dept. of Agric. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Phelps across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Phelps
Daughter · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
John Phelps
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Phelps
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Phelps
Sibling · 1940 · age 13
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
1940 US Federal Census — Lawrence-County, Ohio
Open full size
1940 US Federal Census — Lawrence-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03096-00371)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isa Nester | 43 | Wife | — | West Virginia |
| 2 | Kenneth Nester | 21 | Son | Musician | Kentucky |
| 3 | Jonah Phelps | 46 | Head | Mail Carrier | Pennsylvania |
| 4 | Hilda Phelps | 43 | Wife | — | Ohio |
| 5 | Mary Alice Phelps THIS PERSON | 23 | Daughter | Lab. Helper | Ohio |
| 6 | James Phelps | 18 | Son | Attendant | Ohio |
| 7 | Margaret Louise Phelps | 13 | Daughter | — | Ohio |
| 8 | John Phelps | 10 | Son | — | Ohio |
| 9 | Martin T. Clerary|Cleary | 40 | Head | Manager | Ohio |
| 10 | Adelaide Clerary|Cleary | 40 | Wife | — | Ohio |
| 11 | Martin Jr. Clerary|Cleary | 13 | Son | — | Ohio |
| 12 | Ida Russell | 52 | Head | — | Ohio |
| 13 | Leonard Gehrling | 58 | Head | Salesman | Ohio |
| 14 | Nyna Gehrling | 56 | Wife | — | Ohio |
| 15 | Brady Gehrling | 33 | Son | Salesman | Ohio |
| 16 | Mary Sherman | 71 | Head | — | Ohio |
| 17 | Rachael Lee Stewart | 76 | Head | — | Ohio |
| 18 | Martine Stewart | 46 | Daughter | Librarian | Ohio |
| 19 | Donald Massie | 43 | Head | Butcher | Ohio |
| 20 | Eloise Massie | 43 | Wife | — | Ohio |
| 21 | Ruth Eleanor Massie | 13 | Daughter | — | Ohio |
| 22 | Jeanel Massie | 9 | Daughter | — | Ohio |
| 23 | J. Ward Taylor | 79 | Head | — | Ohio |
| 24 | Carrie Taylor | 65 | Wife | — | Ohio |
| 25 | Albert H. Keyes | 33 | Head | Owner | Ohio |
| 26 | Clara Keyes | 32 | Wife | — | Ohio |
| 27 | William E. Marting | 27 | Head | Salesman | Ohio |
| 28 | Anna Marting | 28 | Wife | — | Ohio |
| 29 | William Cardwell | 55 | Head | Plumber | West Virginia |
| 30 | Irene Cardwell | 53 | Wife | — | Kentucky |
| 31 | Chester Cardwell | 30 | Son | Electrician | West Virginia |
| 32 | William Jr. Cardwell | 20 | Son | Plumber Helper | Ohio |
| 33 | Howard Hopkins | 43 | Head | Lawyer | Ohio |
| 34 | Joseph S. Walters | 27 | Head | Dentist | Ohio |
| 35 | Anita Mae Walters | 27 | Wife | — | Virginia |
| 36 | Christopher Walters | 2 | Son | — | Ohio |
| 37 | Christian Myers | 50 | Head | — | Kentucky |
| 38 | Emma B. Davies | 80 | Head | — | Ohio |
| 39 | Mary E. Hoffman | 76 | Head | — | Ohio |
| 40 | Egid Weitz | 80 | Lodger | — | Germany |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)