JW
James Wagner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monona-County, Iowa
Our Model Tree links this James Wagner across the 1930 and 1940 US Censuses in Monona-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monona-County, Iowa |
| Surname | Wagner |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Belvidere Township |
| 1935 Residence (County) | Monona |
| Additional Details | |
| Highest Grade | S 6 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Belvidere Township |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Wagner | Son | — | 12 | ~1928 |
| Nellie Wagner | Daughter | — | 7 | ~1933 |
| Nellie Wagner | Spouse | — | 34 | ~1906 |
| Iris Wagner | Daughter | — | 10 | ~1930 |
| Leo Wagner | Son | — | 4 | ~1936 |
| Ronald Wagner | Son | — | 1 | ~1939 |
| Robert Wagner | Son | — | 14 | ~1926 |
| Robert Wagner | Head | — | 35 | ~1905 |
| Mary Wagner | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Monona, Iowa
Son, age 2
Monona, Iowa · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wagner |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Monona-County, Iowa
Son, age 12
Monona-County, Iowa · implied b. ~1928 — 9 household members
| Surname | Wagner |
| Given Name | James E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Belvidere Township |
| 1935 Residence (County) | Monona |
| Highest Grade | S 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 James Wagner across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Wagner
Son · 1940 · age 12 · b. ~1928 · Iowa
★ You are viewing this record
Sibling
Iris Wagner
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Wagner
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Wagner
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Wagner
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Wagner
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Wagner
Sibling · 1940 · age 14
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 — Monona-County, Iowa
Open full size
1940 US Federal Census — Monona-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01184-00063)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel Jane Quigley | 13 | Daughter | — | Iowa |
| 2 | Olson E. Nikolaiden | 37 | Head | Farmer | Iowa |
| 3 | Margaret E. Nikolaiden | 31 | Wife | Housewife | Iowa |
| 4 | Clem E. Nikolaiden | 10 | Son | — | Iowa |
| 5 | William E. Russell | 52 | Head | Farmer | West Virginia |
| 6 | Anna M. Russell | 51 | Wife | Housewife | Iowa |
| 7 | Adeline E. Leigh | 16 | Daughter | At School | Iowa |
| 8 | J. Edward Quigley | 61 | Head | Hired Hand | Iowa |
| 9 | Earl H. Mcclure | 23 | Head | Hired Hand | Iowa |
| 10 | William M. Lang | 43 | Head | Hired Hand | Illinois |
| 11 | Anna Lang | 42 | Wife | Housewife | Iowa |
| 12 | Gertie Treter | 24 | Daughter | Housewife | Iowa |
| 13 | William C. Treter | 33 | Son-in-law | Hired Hand | Iowa |
| 14 | Jake Bendiksen | 68 | Head | Farmer | Denmark |
| 15 | Charles F. Wagner | 37 | Head | Hired Hand | Iowa |
| 16 | Lava E. Wagner | 33 | Wife | Housewife | Iowa |
| 17 | Charles F. Wagner | 13 | Son | — | Iowa |
| 18 | Doris E. Wagner | 11 | Daughter | — | Iowa |
| 19 | Ray L. Wagner | 10 | Son | — | Iowa |
| 20 | Mildred M. Wagner | 9 | Daughter | — | Iowa |
| 21 | William J. Hally | 29 | Head | Hired Hand | Iowa |
| 22 | Frances M. Hally | 27 | Wife | Housewife | North Dakota |
| 23 | Ronald W. Hally | 6 | Son | — | Iowa |
| 24 | Ellsworth P. Hally | 4 | Son | — | Iowa |
| 25 | Roger S. Hally | 2 | Son | — | Iowa |
| 26 | Robert W. Wagner | 35 | Head | Farmer | Iowa |
| 27 | Nellie E. Wagner | 34 | Wife | Housewife | Iowa |
| 28 | Robert W. Jr. Wagner | 14 | Son | Farmer | Iowa |
| 29 | James E. Wagner THIS PERSON | 12 | Son | — | Iowa |
| 30 | Iris A. Wagner | 10 | Daughter | — | Iowa |
| 31 | Nellie May Wagner | 7 | Daughter | — | Iowa |
| 32 | Leo Jean Wagner | 4 | Son | — | Iowa |
| 33 | Mary E. Wagner | 2 | Daughter | — | Iowa |
| 34 | Ronald D. Wagner | 1 | Son | — | Iowa |
| 35 | Frank Mann | 54 | Head | Farmer | Iowa |
| 36 | Maggie D. Mann | 49 | Wife | Housewife | Iowa |
| 37 | Virgil W. Mann | 18 | Son | Farmer | Iowa |
| 38 | Evalena S. Mann | 14 | Daughter | Helps In Farm Home | Iowa |
| 39 | Albert L. Butler | 45 | Head | Farmer | Iowa |
| 40 | Ruby P. Butler | 40 | Wife | Housewife | Iowa |
Related Census Records
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)