JP
James Parker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Ohio
Our Model Tree links this James Parker across the 1920, 1930 and 1940 US Censuses in Delaware-County, Ohio (XGBoost, ~Confirmed), with identified parents George & George — first a head (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Ohio |
| Surname | Parker |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Delaware |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Medical doctor |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 50 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Medical Doctor |
| Township / Ward | Delaware |
| Est. Birth Year | ~1907 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Patty Parker | Daughter | — | 2 | ~1938 |
| James Parker | Head | — | 33 | ~1907 |
| Dorothy Hepner | Other | — | 21 | ~1919 |
| William Parker | Son | — | 5 | ~1935 |
| James Parker | Son | — | 7 | ~1933 |
| Harriet Parker | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Delaware, Ohio
Son, age 12
Delaware, Ohio · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Delaware, Ohio
Son, age 22
Delaware, Ohio · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Delaware-County, Ohio
Head, age 33
Delaware-County, Ohio · implied b. ~1907 — 6 household members
| Surname | Parker |
| Given Name | James |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Delaware |
| 1935 Residence (County) | Delaware |
| Occupation | Medical doctor |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 50 |
| Highest Grade | C 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 James Parker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Parker (~0.92 confidence) and father George Parker (~0.92 confidence) and mother Bertha Parker (~0.92 confidence) and mother Ruth Parker (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Parker
b. ~1884
Source father
● Household
· direct · ~0.92
Father
George Parker
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Bertha Parker
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Ruth Parker
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Parker
Head · 1940 · age 33 · b. ~1907 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Delaware-County, Ohio
Open full size
1940 US Federal Census — Delaware-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03062-00188)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Pegg Ann Hilt | 8 | daughter | — | Ohio |
| 42 | Caroline Hilt | 4 | daughter | — | Ohio |
| 43 | Orrie E. Swartz | 53 | head | Laborer | Penna |
| 44 | Jean Swartz | 16 | daughter | — | Ohio |
| 45 | Maxine Swartz | 16 | daughter | — | Ohio |
| 46 | J. D. Muir | 69 | head | Farmer | Ohio |
| 47 | Florence Muir | 54 | wife | Housekeeper | Ohio |
| 48 | Ethel E. Johnson | 45 | head | Investigator | Michigan |
| 49 | Phyllis O'Keefe | 20 | daughter | Housekeeper | Colorado |
| 50 | Merrick | 23 | son in law | Office Manager | Ohio |
| 51 | Lucy Cowgill | 50 | head | Seamstress | Ohio |
| 52 | Abraham Rosenthal | 45 | head | Merchant | Ohio |
| 53 | Charlotte Rosenthal | 46 | wife | Merchant | Kentucky |
| 54 | Donald Silver | 18 | step son | — | Ohio |
| 55 | Walter Warren | 58 | head | Painter | Ohio |
| 56 | Mary D. Warren | 41 | wife | Housekeeper | Ohio |
| 57 | Robert Warren | 17 | step son | — | Ohio |
| 58 | Virgil Van Syckle | 28 | head | Retail Salesman | Ohio |
| 59 | Susie D. Van Syckle | 28 | wife | Housekeeper | Ohio |
| 60 | Duane Van Syckle | 2 | son | — | Ohio |
| 61 | Hosea Kyle | 41 | head | Station Attendant | Ohio |
| 62 | Clara Kyle | 40 | wife | Laundry Worker | W. Virginia |
| 63 | Vernon Halloway | 28 | head | Teacher | Ohio |
| 64 | Celeste Halloway | 26 | wife | Housemother | Maine |
| 65 | Evelyn C. Ruby | 67 | head | Housemother | Ohio |
| 66 | Hays Bonnette | 63 | head | Retail Salesman | Ohio |
| 67 | Pearl D. Bonnette | 60 | wife | Housekeeper | Ohio |
| 68 | Everett Bonnette | 37 | son | Auditor | Ohio |
| 69 | James Parker THIS PERSON | 33 | head | Medical Doctor | Ohio |
| 70 | Harriet Parker | 31 | wife | — | Ohio |
| 71 | James R. Parker | 7 | son | — | Ohio |
| 72 | William Parker | 5 | son | — | Ohio |
| 73 | Patty Parker | 2 | daughter | — | Ohio |
| 74 | Dorothy Hepner | 21 | maid | Maid | Ohio |
| 75 | Walter Burmand | 28 | head | Asst. Doctor | Penna |
| 76 | Margaret D. Burmand | 32 | wife | Housemother | Penna |
| 77 | Mary Justin | 50 | head | Housekeeper | Ohio |
| 78 | Shannon Burchard | 51 | head | Doctor | Ohio |
| 79 | Monna Burchard | 50 | wife | Receptionist | Ohio |
| 80 | Jane Freeman | 79 | head | Treasurer | Ohio |
Pedigree Summary
James
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 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)