RM
Ralph Moore — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mitchell-County, Iowa
Our Model Tree links this Ralph Moore across the 1910, 1920, 1930 and 1940 US Censuses in Mitchell-County, Iowa (XGBoost, ~Confirmed), with identified parents Pinchon & Rinaldo — first a son (b.~1907), then head of a 2-person household.
Age 33
b. ~1907
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mitchell-County, Iowa |
| Surname | Moore |
| Given Name | Ralph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mitchell |
| 1935 Residence (County) | Mitchell |
| Additional Details | |
| Occupation | Machinist |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 105 |
| Highest Grade | No 7 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Machinist |
| Township / Ward | West Mitchell |
| Est. Birth Year | ~1907 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Pinchon Moore | Head | — | 75 | ~1865 |
| Ralph Moore | Son | — | 33 | ~1907 |
Census Appearances
1910
Mitchell, Iowa
Son, age 3
Mitchell, Iowa · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moore |
| Given Name | Ralph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Mitchell, Iowa
Son, age 13
Mitchell, Iowa · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moore |
| Given Name | Ralph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Mitchell, Iowa
Son, age 23
Mitchell, Iowa · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moore |
| Given Name | Ralph A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Masonry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Mitchell-County, Iowa
Son, age 33
Mitchell-County, Iowa · implied b. ~1907 — 2 household members
| Surname | Moore |
| Given Name | Ralph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Mitchell |
| 1935 Residence (County) | Mitchell |
| Occupation | Machinist |
| Industry | Factory |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 105 |
| Highest Grade | No 7 |
| 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 Ralph Moore across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Pinchon Moore (~0.92 confidence) and father Rinaldo Moore (~0.92 confidence) and mother Mary Moore (~0.92 confidence) and mother Mary Moore (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Pinchon Moore
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Rinaldo Moore
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Mary Moore
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Mary Moore
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Moore
Son · 1940 · age 33 · b. ~1907 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mitchell-County, Iowa
Open full size
1940 US Federal Census — Mitchell-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01183-00589)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary E. D. Rose | 71 | Head | — | Illinois |
| 2 | Delos C. Rose | 37 | Son | Electrician | Iowa |
| 3 | Kenneth J. Rose | 33 | Son | Mechanic | Iowa |
| 4 | Curtis Duncan | 37 | Head | Farm Labor | Iowa |
| 5 | Wilma M. Duncan | 33 | Wife | — | Iowa |
| 6 | Wilford C. Duncan | 13 | Son | — | Iowa |
| 7 | Erna M. Duncan | 10 | Daughter | — | Iowa |
| 8 | Edith E. Duncan | 8 | Daughter | — | Iowa |
| 9 | Donald V. Barrett | 34 | Head | Operator | Iowa |
| 10 | Calista M. Barrett | 35 | Wife | — | Iowa |
| 11 | Delores A. Barrett | 12 | Daughter | — | Iowa |
| 12 | Marian J. Barrett | 10 | Daughter | — | Iowa |
| 13 | Thomas E. Barrett | 9 | Son | — | Iowa |
| 14 | John O. Barrett | 7 | Son | — | Iowa |
| 15 | Margaret D. Barrett | 4 | Daughter | — | Iowa |
| 16 | George B. Barrett | 3 | Son | — | Iowa |
| 17 | Elizabeth J. Barrett | 2 | Daughter | — | Iowa |
| 18 | Earl W. Rossiter | 34 | Head | Laborer | Iowa |
| 19 | George F. D. Walter | 70 | Head | Carpenter | Wisconsin |
| 20 | Charlotte Walter | 62 | Wife | — | Iowa |
| 21 | Alvin A. Petznick | 26 | Head | Farming | Iowa |
| 22 | Gertrude C. D. Petznick | 35 | Wife | — | Iowa |
| 23 | Edwin C. D. Miller | 71 | Head | Butcher | Wisconsin |
| 24 | Juliana Miller | 68 | Wife | — | Wisconsin |
| 25 | Thomas D. Thompson | 56 | Head | Laborer | Iowa |
| 26 | Ina B. Thompson | 52 | Wife | — | Iowa |
| 27 | Luanna D. Thompson | 78 | Head | — | Denmark |
| 28 | Christian H. Schaefer | 50 | Head | Lineman | Illinois |
| 29 | Flossie M. Schaefer | 41 | Wife | — | Iowa |
| 30 | Robert C. Schaefer | 18 | Son | Janitor | Iowa |
| 31 | Evelyn G. Schaefer | 16 | Daughter | — | Iowa |
| 32 | Wilbur L. Schaefer | 13 | Son | — | Iowa |
| 33 | Lloyd W. Moneymaker | 24 | Head | Farming | Iowa |
| 34 | Ruth M. Moneymaker | 20 | Wife | — | Iowa |
| 35 | Pinchon D. Moore | 75 | Head | — | Iowa |
| 36 | Ralph A. Moore THIS PERSON | 33 | Son | Machinist | Iowa |
| 37 | Birger D. Bakkum | 36 | Head | Farm Labor | Norway |
| 38 | Lillian Bakkum | 23 | Wife | — | Iowa |
| 39 | Lincoln D. Clift | 75 | Head | Beekeeper | Canada-English |
| 40 | Nelson Bora | 52 | Head | Laborer | Norway |
Pedigree Summary
Ralph
Gen 1 · 4 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)