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John Conway — 1940 US Census Record
Model Tree available1940 United States Federal Census · Crawford-County, Iowa
Our Model Tree links this John Conway across the 1920, 1930 and 1940 US Censuses in Crawford-County, Iowa (XGBoost, ~Confirmed), with identified parents Michael & Margaret — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Iowa |
| Surname | Conway |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 300 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Hand |
| Township / Ward | Dow City Town |
| Est. Birth Year | ~1916 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Conway | Daughter | — | 26 | ~1914 |
| Michal Conway | Head | — | 68 | ~1872 |
| John Conway | Son | — | 24 | ~1916 |
| Margaret Conway | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Crawford, Iowa
Son, age 4
Crawford, Iowa · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conway |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Crawford, Iowa
Son, age 14
Crawford, Iowa · implied b. ~1916 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conway |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Crawford-County, Iowa
Son, age 24
Crawford-County, Iowa · implied b. ~1916 — 4 household members
| Surname | Conway |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Crawford |
| Occupation | Farm hand |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 300 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| 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 John Conway across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Conway (~0.92 confidence) and mother Margaret Conway (~0.92 confidence) and mother Margaret Conway (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Conway
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Margaret Conway
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Margaret Conway
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Conway
Son · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Margaret Conway
Sibling · 1940 · age 26
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 — Crawford-County, Iowa
Open full size
1940 US Federal Census — Crawford-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01152-00532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Orval F. Dryden | 29 | Head | Cream Tester | Missouri |
| 2 | Bernice E. Dryden | 25 | Wife | — | Iowa |
| 3 | Louis Ann Dryden | 4 | Daughter | — | Iowa |
| 4 | John Huffman | 74 | Father in law | — | Ireland |
| 5 | Margaret Kallion | 64 | Head | — | Pennsylvania |
| 6 | Bernice Kallion | 18 | Grand daughter | — | Iowa |
| 7 | Eldridge Kallion | 48 | Son | Laborer | Iowa |
| 8 | Ernest Heuthan | 43 | Head | Operator | Iowa |
| 9 | Sarah Heuthan | 58 | Wife | — | Iowa |
| 10 | Al. J. Bauer | 24 | Head | — | Iowa |
| 11 | Sarah F. Bauer | 25 | Wife | — | Iowa |
| 12 | Charlene M. Bauer | 6 | Daughter | — | Iowa |
| 13 | Robert A. Bauer | 3 | Son | — | Iowa |
| 14 | Carol A. Bauer | 1 | Daughter | — | Iowa |
| 15 | Walter D. Kelly | 66 | Head | — | Iowa |
| 16 | Michal Conway | 68 | Head | — | Illinois |
| 17 | Margaret Conway | 65 | Wife | — | Iowa |
| 18 | Margaret V. Conway | 26 | Daughter | — | Iowa |
| 19 | John F. Conway THIS PERSON | 24 | Son | Farm Hand | Iowa |
| 20 | Albert F. Igoe | 30 | Head | Owner | Iowa |
| 21 | Edna M. Igoe | 27 | Wife | — | Iowa |
| 22 | Kayne E. Igoe | 1 | Son | — | Iowa |
| 23 | John H. Dryden | 39 | Head | Laborer | Missouri |
| 24 | Margaret A. Dryden | 36 | Wife | — | Iowa |
| 25 | Forest A. Vanlandingham | 54 | Head | Laborer | Nebraska |
| 26 | Blanche J. Vanlandingham | 48 | Wife | Egg Candler | Iowa |
| 27 | Iris L. Vanlandingham | 26 | Daughter | Housework | Iowa |
| 28 | Forest A. Vanlandingham | 20 | Son | Laborer | Iowa |
| 29 | John K. Vanlandingham | 14 | Son | — | Iowa |
| 30 | Keith L. Vanlandingham | 12 | Son | — | Iowa |
| 31 | John Garey | 52 | Head | — | Iowa |
| 32 | Emma L. Garey | 37 | Sister | — | Iowa |
| 33 | Alva Olmstead | 34 | Head | — | Iowa |
| 34 | Eleanor E. Olmstead | 29 | Wife | — | Iowa |
| 35 | Maxine J. Olmstead | 11 | Daughter | — | Iowa |
| 36 | Earl L. Olmstead | 10 | Son | — | Iowa |
| 37 | Richard A. Olmstead | 8 | Son | — | Iowa |
| 38 | Ester D. Olmstead | 6 | Daughter | — | Iowa |
Pedigree Summary
John + 1 sibling
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)