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Mary Phelps — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Appanoose-County, Iowa
Our Model Tree links this Mary Phelps across the 1930 and 1940 US Censuses in Appanoose-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Appanoose-County, Iowa |
| Surname | Phelps |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Vermilion Township |
| 1935 Residence (County) | Appanoose |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Vermilion Township |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Fay Phelps | Daughter | — | 19 | ~1921 |
| W Phelps | Son | — | 17 | ~1923 |
| Edna Phelps | Daughter | — | 2 | ~1938 |
| W Phelps | Head | — | 42 | ~1898 |
| Ruth Phelps | Daughter | — | 6 | ~1934 |
| Jennie Phelps | Spouse | — | 39 | ~1901 |
| Andrew Phelps | Other | — | 38 | ~1902 |
| Mary Phelps | Daughter | — | 13 | ~1927 |
| Delores Phelps | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Appanoose, Iowa
Daughter, age 3
Appanoose, Iowa · implied b. ~1927 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Phelps |
| Given Name | Marylin |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Appanoose-County, Iowa
Daughter, age 13
Appanoose-County, Iowa · implied b. ~1927 — 9 household members
| Surname | Phelps |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Vermilion Township |
| 1935 Residence (County) | Appanoose |
| Highest Grade | 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 Mary Phelps across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Phelps
Daughter · 1940 · age 13 · b. ~1927 · Iowa
★ You are viewing this record
Sibling
Delores Phelps
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Phelps
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
W Phelps
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fay Phelps
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Phelps
Sibling · 1940 · age 6
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 — Appanoose-County, Iowa
Open full size
1940 US Federal Census — Appanoose-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01137-00617)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Lamantia | 20 | Son | Miner | Iowa |
| 42 | Virginia Lamantia | 16 | Daughter | — | Iowa |
| 43 | Josephine Lamantia | 14 | Daughter | — | Iowa |
| 44 | Allen Cochran | 58 | Head | Farmer | Iowa |
| 45 | Silvia Cochran | 55 | Wife | — | Missouri |
| 46 | Ruby Cochran | 18 | Daughter | — | Iowa |
| 47 | Ray Cochran | 13 | Son | — | Iowa |
| 48 | Kenneth Henson | 14 | Grandson | — | Iowa |
| 49 | W. A. Jackson | 32 | Head | Labor | Missouri |
| 50 | Mary Jackson | 26 | Wife | — | Missouri |
| 51 | W. Jr. Jackson | 8 | Son | — | Iowa |
| 52 | Nancy Lee Jackson | 4 | Daughter | — | Town |
| 53 | Mary Anne Jackson | 3 | Daughter | — | Town |
| 54 | Charles Staniger | 23 | Head | Caterer | Iowa |
| 55 | Eileen Staniger | 24 | Wife | — | Illinois |
| 56 | Henry Chance | 27 | Head | Miner | Missouri |
| 57 | Orton Climie | 64 | Head | Farmer | Iowa |
| 58 | Nellie Maude Climie | 60 | Wife | — | Illinois |
| 59 | Martin Clemens | 60 | Head | Labor | Missouri |
| 60 | Lily Clemens | 51 | Wife | — | Iowa |
| 61 | Mavel Clemens | 20 | Son | Labor | Iowa |
| 62 | Hattie Clemens | 15 | Daughter | — | Iowa |
| 63 | Charles Clemens | 12 | Son | — | Iowa |
| 64 | Virginia Clemens | 8 | Daughter | — | Iowa |
| 65 | Geo. A. Manson | 53 | Head | Meat Cutter | Iowa |
| 66 | Ethel Manson | 46 | Wife | — | Iowa |
| 67 | Ted Manson | 23 | Son | Clerk | Iowa |
| 68 | Sam Ellis | 58 | Head | Salesman | Missouri |
| 69 | Ola E. Ellis | 55 | Wife | Book Keeper | Iowa |
| 70 | Max E. Ellis | 23 | Son | Music Teacher | Iowa |
| 71 | Don E. Ellis | 21 | Son | Clerk | Iowa |
| 72 | W. J. Phelps | 42 | Head | Farm Hand | Missouri |
| 73 | Jennie Phelps | 39 | Wife | — | Missouri |
| 74 | Fay Phelps | 19 | Daughter | Farm Hand | Iowa |
| 75 | W. Jr. Phelps | 17 | Son | — | Iowa |
| 76 | Delores Phelps | 15 | Daughter | Farm Hand | Iowa |
| 77 | Mary Phelps THIS PERSON | 13 | Daughter | — | Iowa |
| 78 | Ruth Phelps | 6 | Daughter | — | Iowa |
| 79 | Edna Phelps | 2 | Daughter | — | Iowa |
| 80 | Andrew Phelps | 38 | Brother | Farm Hand | 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)