RM
Robert Matthews — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Matthews across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Ray & Roy — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Matthews |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Some house |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Matthews | Son | — | 22 | ~1918 |
| Joe Matthews | Son | — | 18 | ~1922 |
| Nellie Matthews | Spouse | — | 50 | ~1890 |
| Carol Matthews | Daughter | — | 8 | ~1932 |
Census Appearances
1920
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mathews |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mathews |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 22
Marion-County, Indiana · implied b. ~1918 — 4 household members
| Surname | Matthews |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Some house |
| 1935 Residence (County) | Marion |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Indiana |
| 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 Robert Matthews across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ray Mathews (~0.92 confidence) and father Roy Mathews (~0.92 confidence) and mother Nellie Matthews (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ray Mathews
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Roy Mathews
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Nellie Matthews
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Matthews
Son · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
Carol Matthews
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joe Matthews
Sibling · 1940 · age 18
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 — 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-t0627-01130-00187)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nellie O. Matthews | 50 | Wife | — | Indiana |
| 2 | Robert Matthews THIS PERSON | 22 | Son | — | Indiana |
| 3 | Joe Matthews | 18 | Son | — | Indiana |
| 4 | Carol Matthews | 8 | Daughter | — | Indiana |
| 5 | Robert L. Powers | 29 | Head | Cashier And Bookkeeper | Missouri |
| 6 | Vera Powers | 30 | Wife | — | Illinois |
| 7 | Robert Jr. Powers | 7 | Son | — | Illinois |
| 8 | Leo White | 24 | Head | Meat Cutter | Indiana |
| 9 | Dorothy O. White | 24 | Wife | Secretary | Indiana |
| 10 | Stephen White | 1 | Son | — | Indiana |
| 11 | George W. Rose | 54 | Head | Claim Adjuster | Indiana |
| 12 | Lillian D. Rose | 48 | Wife | — | Indiana |
| 13 | Virginia Rose | 24 | Daughter | Receptionist | Indiana |
| 14 | Owen Gillette | 29 | Son-in-law | Cement Finisher | Michigan |
| 15 | Dorothy Gillette | 25 | Daughter | — | Indiana |
| 16 | Loren Gillette | 1 | Grand-son | — | Indiana |
| 17 | Richard Joffee | 28 | Head | Weigh Master | Wisconsin |
| 18 | Lydia O. Joffee | 28 | Wife | — | Wisconsin |
| 19 | Nancy Joffee | 2 | Daughter | — | Wisconsin |
| 20 | Emma L. Keller | 73 | Head | — | Indiana |
| 21 | Ida Meisenhelder | 72 | Sister | — | Indiana |
| 22 | Finley D. May | 54 | Head | Car-Foreman | Indiana |
| 23 | Nellie O. May | 49 | Wife | — | Indiana |
| 24 | Sara May | 89 | Mother | — | Indiana |
| 25 | Harry C. Jr. Weaver | 56 | Head | Mechanical Engineer | Indiana |
| 26 | Mable Weaver | 56 | Wife | — | Indiana |
| 27 | Kathryn Weaver | 18 | Daughter | — | Indiana |
| 28 | Richard Huggin | 29 | Head | Asst. Secretary | Indiana |
| 29 | Louise Huggin | 29 | Wife | — | Indiana |
| 30 | Linda Huggin | 3 | Daughter | — | Indiana |
| 31 | Earl Burgett | 50 | Head | Telegraph And Signal Dept. | Ohio |
| 32 | Eunice D. Burgett | 52 | Wife | — | West Virginia |
| 33 | Clarence Gruber | 47 | Head | Structural Engineer | Indiana |
| 34 | Maude Gruber | 44 | Wife | — | Indiana |
| 35 | Joe Gruber | 19 | Son | — | Indiana |
| 36 | Nancy Gruber | 9 | Daughter | — | Ohio |
| 37 | Carol Gruber | 4 | Daughter | — | Indiana |
| 38 | Loren Hull | 47 | Head | Foreman-Painter | Missouri |
| 39 | Lenore O. Hull | 43 | Wife | — | Michigan |
| 40 | James Hull | 16 | Son | — | Michigan |
Pedigree Summary
Robert + 2 siblings
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)