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Donald Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Scott-County, Iowa
Our Model Tree links this Donald Martin across the 1930 and 1940 US Censuses in Scott-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Scott-County, Iowa |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Davenport City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Marcella Martin | Spouse | — | 45 | ~1895 |
| Barbara Martin | Daughter | — | 21 | ~1919 |
| Jean Martin | Daughter | — | 15 | ~1925 |
| John Martin | Son | — | 20 | ~1920 |
| Donald Martin | Son | — | 13 | ~1927 |
| Robert Martin | Son | — | 8 | ~1932 |
| Virginia Martin | Daughter | — | 18 | ~1922 |
| Betty Martin | Daughter | — | 10 | ~1930 |
| John Martin | Head | — | 45 | ~1895 |
Census Appearances
1930
Scott, Iowa
Son, age 3
Scott, Iowa · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Scott-County, Iowa
Son, age 13
Scott-County, Iowa · implied b. ~1927 — 9 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Davenport City |
| 1935 Residence (County) | Scott |
| Highest Grade | 7 |
| 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 Donald Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Martin
Son · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Robert Martin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Martin
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Martin
Sibling · 1940 · age 10
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 — Scott-County, Iowa
Open full size
1940 US Federal Census — Scott-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01203-00744)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dora Fischer | 24 | Daughter | — | Iowa |
| 42 | Jannett Fischer | 22 | Daughter | — | Iowa |
| 43 | Peter P Springer | 41 | Head | Moving Picture Operator | Wisconsin |
| 44 | Alma Springer | 37 | Wife | — | Michigan |
| 45 | Mary Ann Springer | 10 | Daughter | — | Illinois |
| 46 | Carol Springer | 5 | Daughter | — | Illinois |
| 47 | John Springer | 8 | Son | — | Illinois |
| 48 | Paul R Fissel | 44 | Head | Postal Clerk | Indiana |
| 49 | George Larson | 52 | Head | Machinist | Wisconsin |
| 50 | Magdalin Larson | 38 | Wife | — | Iowa |
| 51 | Barbara Larson | 8 | Daughter | — | Wisconsin |
| 52 | John Larson | 8 | Son | — | Wisconsin |
| 53 | James Larson | 4 | Son | — | Wisconsin |
| 54 | Nancy Larson | 4 | Daughter | — | Wisconsin |
| 55 | Dorothy Larson | 0 | Daughter | — | Wisconsin |
| 56 | John Martin | 45 | Head | Physician | Illinois |
| 57 | Marcella Martin | 45 | Wife | — | Iowa |
| 58 | Barbara Martin | 21 | Daughter | Stenographer | Iowa |
| 59 | John Martin | 20 | Son | Grocery Clerk | Iowa |
| 60 | Virginia Martin | 18 | Daughter | — | Iowa |
| 61 | Jean Martin | 15 | Daughter | — | Iowa |
| 62 | Donald Martin THIS PERSON | 13 | Son | — | Iowa |
| 63 | Betty Martin | 10 | Daughter | — | Iowa |
| 64 | Robert Martin | 8 | Son | — | Iowa |
| 65 | Leander N Daneworth | 60 | Head | Machinist | New York |
| 66 | Louisa H Daneworth | 59 | Wife | — | England |
| 67 | Richenda Daneworth | 30 | Daughter | — | New York |
| 68 | Lawrence A Block | 42 | Head | Physician | Iowa |
| 69 | Gayle Block | 43 | Wife | — | Iowa |
| 70 | Thomas H Block | 14 | Son | — | Iowa |
| 71 | William L Block | 11 | Son | — | Iowa |
| 72 | Margaret C Block | 8 | Daughter | — | Iowa |
| 73 | Velma Wakefield | 20 | Maid | Maid | Iowa |
| 74 | Ivor Swenson | 53 | Head | Office Manager | Sweden |
| 75 | Leota Swenson | 46 | Wife | — | Iowa |
| 76 | Elizabeth Swenson | 29 | Daughter | — | Iowa |
| 77 | Frank Swenson | 28 | Son | — | Iowa |
| 78 | Harry Taylor | 42 | Head | Office Clerk | Iowa |
| 79 | Madaline Taylor | 42 | Wife | — | Iowa |
| 80 | Thomas Taylor | 18 | Son | — | 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)