JH
James Hopkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this James Hopkins across the 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 8-person household.
Age 29
b. ~1911
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Hopkins |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Lewis Township |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 780 |
| Highest Grade | G 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Lewis Township |
| Est. Birth Year | ~1911 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Irma Hopkins | Daughter | — | 22 | ~1918 |
| Gersie Hopkins | Head | — | 51 | ~1889 |
| Frank Hopkins | Son | — | 27 | ~1913 |
| George Hopkins | Son | — | 19 | ~1921 |
| Richard Hopkins | Son | — | 11 | ~1929 |
| James Hopkins | Son | — | 29 | ~1911 |
| Lowell Hopkins | Son | — | 17 | ~1923 |
| Archie Hopkins | Son | — | 21 | ~1919 |
Census Appearances
1930
Pottawattamie, Iowa
Son, age 18
Pottawattamie, Iowa · implied b. ~1912 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Salesman |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Son, age 29
Pottawattamie-County, Iowa · implied b. ~1911 — 8 household members
| Surname | Hopkins |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Lewis Township |
| 1935 Residence (County) | Pottawattamie |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 780 |
| Highest Grade | G 8 |
| 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 James Hopkins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Hopkins
Son · 1940 · age 29 · b. ~1911 · Iowa
★ You are viewing this record
Sibling
Irma Hopkins
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Archie Hopkins
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Hopkins
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lowell Hopkins
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Hopkins
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Hopkins
Sibling · 1940 · age 11
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01199-00693)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Madeleine Carroll | 13 | Daughter | — | Iowa |
| 2 | Roseline Carroll | 10 | Daughter | — | Iowa |
| 3 | Paul E. Carroll | 8 | Son | — | South Dakota |
| 4 | Kathleen Carroll | 5 | Daughter | — | Iowa |
| 5 | Jo Ann Carroll | 2 | Daughter | — | Iowa |
| 6 | Charles A. Rahn | 67 | Head | Farmer | Illinois |
| 7 | Laura Rahn | 60 | Wife | — | Indiana |
| 8 | Ruth Rahn | 31 | Daughter | Nurse | Iowa |
| 9 | Lawrence Rahn | 17 | Son | — | Iowa |
| 10 | Francis Pratt | 24 | Lodger | — | Massachusetts |
| 11 | John A. Schultz | 80 | Head | — | Iowa |
| 12 | Mary Schultz | 73 | Wife | — | Germany |
| 13 | Byron Mcmullen | 62 | Head | Farmer | Iowa |
| 14 | Dorothy Mcmullen | 65 | Wife | — | Missouri |
| 15 | Clarence B. Wughelhaus | 42 | Head | Farm Hand | New Jersey |
| 16 | Retta Wughelhaus | 33 | Wife | — | Missouri |
| 17 | Dorothy Wughelhaus | 15 | Daughter | — | Iowa |
| 18 | Robert Wughelhaus | 12 | Son | — | Missouri |
| 19 | Wallace Wughelhaus | 10 | Son | — | Iowa |
| 20 | Gersie A. Hopkins | 51 | Head | — | Iowa |
| 21 | James E. Hopkins THIS PERSON | 29 | Son | Clerk | Iowa |
| 22 | Frank C. Hopkins | 27 | Son | Truck Driver | Iowa |
| 23 | Irma A. Hopkins | 22 | Daughter | Housework | Iowa |
| 24 | Archie E. Hopkins | 21 | Son | Clerk | Iowa |
| 25 | George S. Hopkins | 19 | Son | Farmer | Iowa |
| 26 | Lowell F. Hopkins | 17 | Son | — | Iowa |
| 27 | Richard G. Hopkins | 11 | Son | — | Iowa |
| 28 | Roy A. Shannon | 42 | Head | Carman | Iowa |
| 29 | Dolores Shannon | 38 | Wife | — | Iowa |
| 30 | Gordon Shannon | 18 | Son | — | Iowa |
| 31 | Maxine Shannon | 16 | Daughter | — | Iowa |
| 32 | Emmett Shannon | 14 | Son | — | Iowa |
| 33 | Jerry Shannon | 10 | Son | — | Iowa |
| 34 | Terry Shannon | 10 | Son | — | Iowa |
| 35 | Larry Shannon | 5 | Son | — | Iowa |
| 36 | Patricia Shannon | 4 | Daughter | — | Iowa |
| 37 | Richard Shannon | 1 | Son | — | Iowa |
| 38 | Noah E. Lane | 41 | Head | Farmer | Missouri |
| 39 | Beulah G. Lane | 39 | Wife | — | Iowa |
| 40 | Cleta Earhart Lane | 21 | Daughter | — | Missouri |
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)