AM
Alice Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Alice Mason across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Mason |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ankeny |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Douglas Twp |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alice | Age | Birth yr |
|---|---|---|---|---|
| Alice Mason | Daughter | — | 21 | ~1919 |
| Harold Mason | Son | — | 18 | ~1922 |
| William Mason | Son | — | 12 | ~1928 |
| Robert Mason | Son | — | 14 | ~1926 |
| Edward Mason | Head | — | 47 | ~1893 |
| Hada Mason | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Polk, Iowa
Daughter, age
Polk, Iowa · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Alice A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 11
Polk, Iowa · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 21
Polk-County, Iowa · implied b. ~1919 — 6 household members
| Surname | Mason |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Ankeny |
| 1935 Residence (County) | Polk |
| Highest Grade | Hs 4 |
| 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 Alice Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Mason (~0.92 confidence) and father Edward Mason (~0.92 confidence) and mother Hazel Mason (~0.92 confidence) and mother Hattie Mason (~0.92 confidence) and mother Hada Mason (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Mason
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Edward Mason
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Hazel Mason
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Hattie Mason
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Hada Mason
b. ~1905
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alice Mason
Daughter · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Robert Mason
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mason
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Mason
Sibling · 1940 · age 18
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01192-00476)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice M. Randolph | 50 | Head | House Work | Iowa |
| 2 | Lewis Randolph | 24 | Son | Operator Farm | Iowa |
| 3 | Nina Randolph | 22 | Daughter | Helps At Home | Iowa |
| 4 | Elizabeth Randolph | 11 | Daughter | — | Iowa |
| 5 | Wayne R. Spear | 29 | Head | Operator Farm | Iowa |
| 6 | Vivian Spear | 26 | Wife | House Work | Iowa |
| 7 | Roger W. Spear | 0 | Son | — | Iowa |
| 8 | Geo. Fred Schmidt | 53 | Head | House Work | Germany |
| 9 | John Schmidt | 30 | Son | Operator Farm | Iowa |
| 10 | George Schmidt | 27 | Son | On Farm | Iowa |
| 11 | Henry Schmidt | 23 | Son | On Farm | Iowa |
| 12 | Albert Schmidt | 22 | Son | — | Iowa |
| 13 | Herman Schmidt | 19 | Son | — | Iowa |
| 14 | Floyd D. Albaugh | 41 | Head | Operator Farm | Iowa |
| 15 | Zina Albaugh | 37 | Wife | House Work | Iowa |
| 16 | Louise Albaugh | 20 | Daughter | Clerical | Iowa |
| 17 | Kenneth Albaugh | 18 | Son | At Home Farm | Iowa |
| 18 | Noel Albaugh | 16 | Son | — | Iowa |
| 19 | Maxine Albaugh | 13 | Daughter | — | Iowa |
| 20 | Dean Albaugh | 9 | Son | — | Iowa |
| 21 | Donald Albaugh | 6 | Son | — | Iowa |
| 22 | Larry Albaugh | 3 | Son | — | Iowa |
| 23 | Oley D. Johnson | 42 | Head | Operator Farm | Iowa |
| 24 | Mabel Johnson | 37 | Wife | House Work | Iowa |
| 25 | Hubert Johnson | 16 | Son | — | Iowa |
| 26 | Merlyn Johnson | 14 | Son | — | Iowa |
| 27 | William Farlow | 59 | Head | Operator Farm | No. Carolina |
| 28 | Ethel Farlow | 56 | Wife | House Work | Illinois |
| 29 | Edward Mason | 47 | Head | Operator Farm | Iowa |
| 30 | Hada D. Mason | 35 | Wife | House Work | Iowa |
| 31 | Alice Mason THIS PERSON | 21 | Daughter | — | Iowa |
| 32 | Harold Mason | 18 | Son | — | Iowa |
| 33 | Robert Mason | 14 | Son | — | Iowa |
| 34 | William Mason | 12 | Son | — | Iowa |
| 35 | Frank D. Berkey | 83 | Head | Retired | Penn. |
| 36 | Elizabeth Berkey | 85 | Wife | — | Iowa |
| 37 | Ida M. Jackey | 54 | Daughter | House Work | Iowa |
| 38 | Simon D. Miller | 52 | Head | Operator Farm | Iowa |
| 39 | Eva Miller | 48 | Wife | House Work | Iowa |
| 40 | Wm. Foster Chambers | 28 | Lodger | Hired Hand | Nebr. |
Related Census Records
Pedigree Summary
Alice + 3 siblings
Gen 1 · 5 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)