WP
William Parker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this William Parker across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Martin & Mary — first a head (b.~1910), then head of a 7-person household.
Age 30
b. ~1910
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Parker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Laborer |
| Industry | Tool House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 765 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1910 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Frances Parker | Daughter | — | 10 | ~1930 |
| William Parker | Head | — | 30 | ~1910 |
| Jerry Parker | Son | — | 5 | ~1935 |
| Albert Parker | Son | — | 11 | ~1929 |
| William Parker | Son | — | 2 | ~1938 |
| Thomas Parker | Son | — | 4 | ~1936 |
| Ida Parker | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Marion, Indiana
Son, age 10
Marion, Indiana · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 20
Marion, Indiana · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 17 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Paper Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Head, age 30
Marion-County, Indiana · implied b. ~1910 — 7 household members
| Surname | Parker |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Laborer |
| Industry | Tool House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 765 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 William Parker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Parker (~0.92 confidence) and mother Mary Parker (~0.92 confidence) and mother Mary Parker (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Parker
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Parker
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Parker
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Parker
Head · 1940 · age 30 · b. ~1910 · Indiana
★ 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01127-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas Weston | 4 | Son | — | Indiana |
| 42 | Nancy Weston | 2 | Daughter | — | Indiana |
| 43 | Jack Weston | 1 | Son | — | Indiana |
| 44 | Edward Cobble | 28 | Head | Paper Maker | Indiana |
| 45 | Margaret Cobble | 26 | Wife | — | Indiana |
| 46 | Mary Ellen Cobble | 1 | Daughter | — | Indiana |
| 47 | William Cobble | 20 | Brother | — | Indiana |
| 48 | William Parker THIS PERSON | 30 | Head | Laborer | Indiana |
| 49 | Ida Mae Parker | 29 | Wife | — | Indiana |
| 50 | Albert Parker | 11 | Son | — | Indiana |
| 51 | Frances Parker | 10 | Daughter | — | Indiana |
| 52 | Jerry Parker | 5 | Son | — | Indiana |
| 53 | Thomas Parker | 4 | Son | — | Indiana |
| 54 | William Parker | 2 | Son | — | Indiana |
| 55 | Dimitri B. Christoff | 56 | Head | Baker | Macedonia |
| 56 | Katherine Christoff | 45 | Wife | — | Macedonia |
| 57 | William Christoff | 23 | Son | — | Indiana |
| 58 | Frank Milligan | 45 | Head | Labor | Georgia |
| 59 | Rosalee Milligan | 41 | Wife | — | Georgia |
| 60 | John C. Milligan | 19 | Son | — | Georgia |
| 61 | Isola Milligan | 20 | Cousin | Waitress | Georgia |
| 62 | Will Yager | 45 | Head | Laborer | Kentucky |
| 63 | Willie B. Yager | 30 | Cousin | — | Kentucky |
| 64 | Irma Lucille Yager | 23 | Lodger | — | Kentucky |
| 65 | Ralph Lightfoot | 28 | Lodger | — | Oklahoma |
| 66 | Leo Kekulski | 35 | Head | Paper Cutter | Illinois |
| 67 | Jeanette Kekulski | 24 | Wife | — | Indiana |
| 68 | Alice Kekulski | 3 | Daughter | — | Indiana |
| 69 | Jennie Miller | 58 | Head | Labor | Kentucky |
| 70 | Karl O. Miller | 35 | Wife | — | Indiana |
| 71 | Phyllis Miller | 25 | Daughter | — | Indiana |
| 72 | Earl Miller | 16 | Son | New Worker | Indiana |
| 73 | Orville Miller | 13 | Son | — | Indiana |
| 74 | Eugene Miller | 11 | Son | — | Indiana |
| 75 | Cecil Miller | 9 | Son | — | Indiana |
| 76 | Clarence Crosley | 21 | Lodger | Labor | Indiana |
| 77 | Emma Crosley | 45 | Lodger | — | Indiana |
| 78 | Edward Kelly | 50 | Lodger | — | Indiana |
| 79 | Lee Morgan | 65 | Head | Peddler | Indiana |
| 80 | Bert Short | 37 | Head | Laborer | Kentucky |
Related Census Records
Pedigree Summary
William
Gen 1 · 3 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)