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Robert Gregory — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cedar-County, Iowa
Our Model Tree links this Robert Gregory across the 1930 and 1940 US Censuses in Cedar-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cedar-County, Iowa |
| Surname | Gregory |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa Twp. |
| 1935 Residence (County) | Cedar |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Iowa Twp |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Hadley | Spouse | — | 28 | ~1912 |
| Shirley Gregory | Daughter | — | 5 | ~1935 |
| Stanford Gregory | Head | — | 55 | ~1885 |
| Stanley Gregory | Son | — | 23 | ~1917 |
| Grace Gregory | Spouse | — | 43 | ~1897 |
| Edna Gregory | Daughter | — | 34 | ~1906 |
| Thomas Hadley | Other | — | 35 | ~1905 |
| Edith Gregory | Daughter | — | 25 | ~1915 |
| Albert Gregory | Son | — | 15 | ~1925 |
| Robert Gregory | Son | — | 11 | ~1929 |
Census Appearances
1930
Cedar, Iowa
Son, age 1
Cedar, Iowa · implied b. ~1929 — 45 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cedar-County, Iowa
Son, age 11
Cedar-County, Iowa · implied b. ~1929 — 10 household members
| Surname | Gregory |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Iowa Twp. |
| 1935 Residence (County) | Cedar |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Gregory across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Gregory
Son · 1940 · age 11 · b. ~1929 · Iowa
★ You are viewing this record
Sibling
Edith Gregory
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Gregory
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Gregory
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Gregory
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stanley Gregory
Sibling · 1940 · age 23
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 — Cedar-County, Iowa
Open full size
1940 US Federal Census — Cedar-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01145-00915)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alford O Melson | 68 | Head | Farm | Iowa |
| 42 | Clara A Melson | 58 | Wife | Housewife | Iowa |
| 43 | William J Melson | 25 | Son | Farm | Iowa |
| 44 | Frances J A Melson | 19 | Daughter | — | Iowa |
| 45 | W Glenn Ridnour | 37 | Head | Farm | Iowa |
| 46 | Edith A Ridnour | 40 | Wife | Housewife | Iowa |
| 47 | Norma L Ridnour | 15 | Daughter | — | Iowa |
| 48 | Edith L Ridnour | 11 | Daughter | — | Iowa |
| 49 | Glenda R Ridnour | 2 | Daughter | — | Iowa |
| 50 | Earl Leo A Ridnour | 58 | Father | Farm | Iowa |
| 51 | Andrew J Mather | 23 | Head | Farm | Iowa |
| 52 | Helen H Mather | 22 | Wife | Housewife | Iowa |
| 53 | Raymond E Long | 53 | Head | Farm | Iowa |
| 54 | Pearl S Long | 42 | Wife | Housewife | Iowa |
| 55 | Charlotte M Long | 13 | Daughter | — | Iowa |
| 56 | Carl W Schiele | 39 | Head | Farm | Iowa |
| 57 | Ethel W Schiele | 38 | Wife | Housewife | Iowa |
| 58 | Shirley J Schiele | 13 | Daughter | — | Iowa |
| 59 | John I Yingling | 49 | Hired hand | Farm | Pa |
| 60 | Clark Wolf | 42 | Head | Farm | Iowa |
| 61 | Helen E Wolf | 38 | Wife | Housewife | Iowa |
| 62 | Eleanor L Wolf | 16 | Daughter | — | Iowa |
| 63 | Marie Wolf | 14 | Daughter | — | Iowa |
| 64 | Charles Wolf | 8 | Son | — | Iowa |
| 65 | Jo Ann Wolf | 7 | Daughter | — | Iowa |
| 66 | Wayne W Wolf | 1 | Son | — | Iowa |
| 67 | Louis N Brown | 45 | Head | Farm | Iowa |
| 68 | Audrey E Brown | 45 | Wife | Housewife | Iowa |
| 69 | Roger D Brown | 19 | Son | Hole Help | Iowa |
| 70 | Janet E Brown | 9 | Daughter | — | Iowa |
| 71 | Stanford A Gregory | 55 | Head | Farm | Ohio |
| 72 | Grace P Gregory | 43 | Wife | Housewife | Ohio |
| 73 | Edna M Gregory | 34 | Daughter | Home Work | Iowa |
| 74 | Edith G Gregory | 25 | Daughter | Housework | Iowa |
| 75 | Stanley E Gregory | 23 | Son | Farm Work | Iowa |
| 76 | Albert W Gregory | 15 | Son | — | Iowa |
| 77 | Robert A Gregory THIS PERSON | 11 | Son | — | Iowa |
| 78 | Shirley J Gregory | 5 | Daughter | — | Iowa |
| 79 | Thomas M Hadley | 35 | Son-in-law | Truck Driver | Iowa |
| 80 | Mary A Hadley | 28 | Wife | Housewife | Iowa |
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)