RP
Robert Pratt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Robert Pratt across the 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Pratt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque County Twp |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dubuque County Twp |
| Est. Birth Year | ~1927 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Caroline Pratt | Spouse | — | 44 | ~1896 |
| William Pratt | Son | — | 6 | ~1934 |
| Robert Pratt | Son | — | 13 | ~1927 |
| Howard Pratt | Son | — | 16 | ~1924 |
| Juliet Pratt | Daughter | — | 19 | ~1921 |
| Charles Pratt | Head | — | 49 | ~1891 |
Census Appearances
1930
Dubuque, Iowa
Son, age 3
Dubuque, Iowa · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pratt |
| Given Name | Robert C |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Son, age 13
Dubuque-County, Iowa · implied b. ~1927 — 6 household members
| Surname | Pratt |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Dubuque County Twp |
| 1935 Residence (County) | Dubuque |
| Highest Grade | 7 |
| 1935 Residence | Same House |
| 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 Pratt across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Pratt
Son · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
William Pratt
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Pratt
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juliet Pratt
Sibling · 1940 · age 19
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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01158-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Grant | 41 | Head | Painter | Iowa |
| 2 | May Grant | 39 | Wife | — | Iowa |
| 3 | Pearl Grant | 19 | Daughter | Waitress | Iowa |
| 4 | Peter Heiderscheit | 48 | Head | Farm Laborer | Iowa |
| 5 | Donald Cupps | 27 | Head | Mill Worker | Iowa |
| 6 | Eloise Cupps | 25 | Wife | — | Iowa |
| 7 | Josephine Cupps | 7 | Daughter | — | Iowa |
| 8 | Donald Cupps | 5 | Son | — | Iowa |
| 9 | Richard Cupps | 4 | Son | — | Iowa |
| 10 | Leonard Cupps | 2 | Son | — | Iowa |
| 11 | Frances Cupps | 0 | Daughter | — | Iowa |
| 12 | Leonard Vondran | 32 | Head | Truck Driver | Wisconsin |
| 13 | Bernadine Vondran | 31 | Wife | — | Iowa |
| 14 | Leonard Jr. Vondran | 3 | Son | — | Iowa |
| 15 | Reuben Hollenberger | 38 | Head | Trucker | Wisconsin |
| 16 | Sylvia Hollenberger | 39 | Wife | Boxmaker | Wisconsin |
| 17 | Betty Hollenberger | 16 | Daughter | — | Wisconsin |
| 18 | Phyllis Hollenberger | 11 | Daughter | — | Illinois |
| 19 | Marilyn Hollenberger | 9 | Daughter | — | Iowa |
| 20 | Albert Beversdorf | 45 | Head | Laborer | Iowa |
| 21 | Lena Beversdorf | 42 | Wife | — | Iowa |
| 22 | Adolf Beversdorf | 46 | Brother | — | Iowa |
| 23 | Edgbert Mcnamer | 25 | Head | Laborer | Iowa |
| 24 | Clementine Mcnamer | 25 | Wife | — | Iowa |
| 25 | Carol Mcnamer | 3 | Daughter | — | Iowa |
| 26 | Wilmer Binden | 28 | Brother-in-law | Laborer | Iowa |
| 27 | Dolores Binden | 19 | Sister-in-law | Strapper | Iowa |
| 28 | Charles Pratt | 49 | Head | Fieldman | Iowa |
| 29 | Caroline Pratt | 44 | Wife | Trimmer | Iowa |
| 30 | Juliet Pratt | 19 | Daughter | — | Iowa |
| 31 | Howard Pratt | 16 | Son | — | Iowa |
| 32 | Robert Pratt THIS PERSON | 13 | Son | — | Iowa |
| 33 | William Pratt | 6 | Son | — | Iowa |
| 34 | Lloyd Birch | 37 | Head | Foreman | Iowa |
| 35 | Eleanor Birch | 32 | Wife | — | Iowa |
| 36 | Melvin Birch | 15 | Son | — | Iowa |
| 37 | Eleanor Birch | 13 | Daughter | — | Michigan |
| 38 | Lloyd Jr. Birch | 10 | Son | — | Iowa |
| 39 | Janet Birch | 7 | Daughter | — | Iowa |
| 40 | Charles Briebe | 29 | Brother-in-law | Laborer | 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)