WM
William Mooney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bremer-County, Iowa
Our Model Tree links this William Mooney across the 1920, 1930 and 1940 US Censuses in Bremer-County, Iowa (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bremer-County, Iowa |
| Surname | Mooney |
| Given Name | William Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waverly City |
| 1935 Residence (County) | Bremer |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Waverly City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mooney | Head | — | 52 | ~1888 |
| Donna Mooney | Daughter | — | 14 | ~1926 |
| William Mooney | Son | — | 21 | ~1919 |
| Nora Mooney | Spouse | — | 48 | ~1892 |
Census Appearances
1920
Bremer, Iowa
Son, age 1
Bremer, Iowa · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mooney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Bremer, Iowa
Son, age 11
Bremer, Iowa · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mooney |
| Given Name | William B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Bremer-County, Iowa
Son, age 21
Bremer-County, Iowa · implied b. ~1919 — 4 household members
| Surname | Mooney |
| Given Name | William Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Waverly City |
| 1935 Residence (County) | Bremer |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 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 William Mooney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Mooney (~0.92 confidence) and father William Mooney (~0.92 confidence) and father William Mooney (~0.92 confidence) and mother Nora Mooney (~0.92 confidence) and mother Nora Mooney (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Mooney
b. ~1888
Source father
● Household
· direct · ~0.92
Father
William Mooney
b. ~1887
Source father
● Household
· direct · ~0.92
Father
William Mooney
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Nora Mooney
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Nora Mooney
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mooney
Son · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Donna Mooney
Sibling · 1940 · age 14
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 — Bremer-County, Iowa
Open full size
1940 US Federal Census — Bremer-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01142-00423)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen C. Wagoner | 19 | daughter | — | Iowa |
| 2 | Charles H. Russell | 78 | head | Mason | Wisconsin |
| 3 | Lacy Ann Russell | 67 | wife | — | Iowa |
| 4 | Kage Maree | 72 | in-law | — | Iowa |
| 5 | Ralph Russell | 52 | brother | Mason | Iowa |
| 6 | Ralph Bennett | 34 | head | Bulk Agent | Iowa |
| 7 | Bernice Bennett | 29 | wife | — | Iowa |
| 8 | Clarence Liles | 30 | lodger | Meat Cutter | Iowa |
| 9 | Lloyd Smith | 48 | head | Co-Owner | Iowa |
| 10 | Rachel Smith | 48 | wife | Co-Owner | Iowa |
| 11 | Julian Guddeck | 79 | father | — | Iowa |
| 12 | Margaret Johansen | 20 | maid | Servant | Iowa |
| 13 | William Mooney | 52 | head | Owner | Iowa |
| 14 | Nora Mooney | 48 | wife | Clerk | Iowa |
| 15 | William Jr. Mooney THIS PERSON | 21 | son | — | Iowa |
| 16 | Donna Mooney | 14 | daughter | — | Ohio |
| 17 | Leon Fay | 53 | head | Doctor | Iowa |
| 18 | Edna Fay | 58 | wife | — | Iowa |
| 19 | August Indiseth | 69 | head | Janitor | Norway |
| 20 | Leo Nebelsky | 46 | head | Laborer | Iowa |
| 21 | Eva Nebelsky | 44 | wife | — | Iowa |
| 22 | Marguerite Nebelsky | 18 | daughter | Waitress | Iowa |
| 23 | Gertrude Nebelsky | 16 | daughter | — | Iowa |
| 24 | Clarence Carstensen | 35 | head | Dentist | Iowa |
| 25 | Mary Carstensen | 30 | wife | — | Missouri |
| 26 | David Carstensen | 2 | son | — | Iowa |
| 27 | John Carstensen | 0 | son | — | Iowa |
| 28 | Lillian Venter | 19 | maid | Maid | Kansas |
| 29 | George Haltimate | 54 | head | Janitor | Illinois |
| 30 | Bessie Haltimate | 48 | wife | Cook | Missouri |
| 31 | Delmer Haltimate | 22 | son | Clerk | Iowa |
| 32 | Leola Belenger | 27 | daughter | — | Iowa |
| 33 | Dennis Corbis | 10 | grandson | — | Iowa |
| 34 | Patricia Corbis | 4 | granddaughter | — | Iowa |
| 35 | William Blair | 78 | lodger | — | Wisconsin |
| 36 | William Hartley | 63 | head | Section Work | Nebraska |
| 37 | Lida Cutter | 61 | head | — | Iowa |
| 38 | Orville Cutter | 64 | husband | Laborer | Iowa |
| 39 | Emily Rust | 70 | head | — | Illinois |
| 40 | William Colburn | 62 | head | — | Iowa |
Pedigree Summary
William + 1 sibling
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)