WM
William Mayer — 1920 US Census Record
Model Tree available1920 United States Federal Census · Marshall, Iowa
Our Model Tree links this William Mayer across the 1900, 1910 and 1920 US Censuses in Marshall, Iowa (XGBoost, ~Confirmed), with identified parents Jacob & Caroline — first a son (b.~1894), then head of a 5-person household.
Age 26
b. ~1894
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Marshall, Iowa |
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | St Anthony Town |
| Est. Birth Year | ~1894 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Elmer Mayer | Son | — | 14 | ~1906 |
| George Mayer | Head | — | 55 | ~1865 |
| Albert Mayer | Son | — | 22 | ~1898 |
| Arnold Mayer | Son | — | 17 | ~1903 |
| William Mayer | Son | — | 26 | ~1894 |
Census Appearances
1900
Marshall, Iowa
Son, age 7
Marshall, Iowa · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | William R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | July |
| Birth Year | 1893 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Marshall, Iowa
Son, age 16
Marshall, Iowa · implied b. ~1894 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Marshall, Iowa
Son, age 26
Marshall, Iowa · implied b. ~1894 — 5 household members
| Surname | Mayer |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Mayer across 3 US Census years (1900, 1910 and 1920) in Marshall, Iowa, using XGBoost record linkage. Identified parents: father Jacob Mayer (~0.92 confidence) and mother Caroline Mayer (~0.92 confidence) and mother Barbonia Mayer (~0.92 confidence) and father George Mayer (~0.92 confidence) and father Jacob Mayer (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Mayer
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Caroline Mayer
b. ~1863
Source mother
● Household
· direct · ~0.92
Mother
Barbonia Mayer
b. ~1864
Source mother
● Household
· direct · ~0.92
Father
George Mayer
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Jacob Mayer
b. ~1865
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Mayer
Son · 1920 · age 26 · b. ~1894 · Iowa
★ You are viewing this record
Sibling
Albert Mayer
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Mayer
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Mayer
Sibling · 1920 · 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
1920 US Federal Census — Marshall, Iowa
Open full size
1920 US Federal Census — Marshall, Iowa
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu502unit:0151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 52 | William Slough | 70 | Head | — | Pennsylvania |
| 53 | Mary E Slough | 66 | Wife | — | Pennsylvania |
| 54 | Earl Hambly | 33 | Head | Filling | Minnesota |
| 55 | Mara Hambly | 26 | Wife | — | Iowa |
| 56 | Bert Hambly | 7 | Son | — | Minnesota |
| 57 | Glen Hambly | 3 | Son | — | Minnesota |
| 58 | Mary Hambly | 1 | Daughter | — | Minnesota |
| 59 | John Fisher | 65 | Head | — | Virginia |
| 60 | Mickey Fisher | 60 | Wife | Teacher | Iowa |
| 61 | James Means | 66 | Head | Laborer | Iowa |
| 62 | Laura Means | 61 | Wife | — | Ohio |
| 63 | William Maltby | 28 | Head | Farmer | Iowa |
| 64 | Lena Maltby | 23 | Wife | — | South Dakota |
| 65 | Donald Maltby | 1 | Son | — | Iowa |
| 66 | Jerry W Dunn | 38 | Head | Mail Carrier | Iowa |
| 67 | Lulu B Dunn | 37 | Wife | — | Iowa |
| 68 | Lester Dunn | 12 | Son | — | Iowa |
| 69 | Esther Dunn | 6 | Daughter | — | Iowa |
| 70 | George Kuhman | 27 | Head | Farmer | Iowa |
| 71 | Sadie Kuhman | 25 | Wife | — | Iowa |
| 72 | Evelyn Kuhman | 3 | Daughter | — | Iowa |
| 73 | Earl Kuhman | 1 | Son | — | Iowa |
| 74 | Elmer Wilson | 21 | Head | Filling | Iowa |
| 75 | Samuel Mickens | 51 | Head | Carpenter | Maryland |
| 76 | Minnie Mickens | 43 | Wife | — | Iowa |
| 77 | George Mayer | 55 | Head | Farmer | Germany |
| 78 | William Mayer THIS PERSON | 26 | Son | Farmer | Iowa |
| 79 | Albert Mayer | 22 | Son | Laborer | Iowa |
| 80 | Arnold Mayer | 17 | Son | Salesman | Iowa |
| 81 | Elmer Mayer | 14 | Son | — | Iowa |
| 82 | Charles Hammerschmidt | 74 | Head | — | Germany |
| 83 | Mary Hammerschmidt | 38 | Daughter | — | Germany |
| 84 | Amanda Reitzel | 17 | Granddaughter | — | Iowa |
| 85 | James R Meyers | 38 | Son | Carpenter | Iowa |
| 86 | Fred Grefe | 34 | Head | Merchant | Iowa |
| 87 | Hulda L Grefe | 31 | Wife | — | Iowa |
| 88 | Richard Grefe | 8 | Son | — | Iowa |
| 89 | Donald Grefe | 7 | Son | — | Iowa |
| 90 | Theodore Grefe | 2 | Son | — | Iowa |
| 91 | James C. L. Dunn | 59 | Head | Farmer | Ireland |
| 92 | Julia S Dunn | 51 | Wife | — | Ireland |
| 93 | Henry Wendell Dunn | 19 | Son | Machinist | Iowa |
| 94 | Velma Dunn | 18 | Daughter | — | Iowa |
| 95 | Hazel Dunn | 16 | Daughter | — | Iowa |
| 96 | Lorna Dunn | 15 | Daughter | — | Iowa |
| 97 | Charlotte Dunn | 13 | Daughter | — | Iowa |
| 98 | Catherine Dunn | 11 | Daughter | — | Iowa |
| 99 | James Jr Dunn | 7 | Son | — | Iowa |
| 100 | Edward Dunn | 5 | Son | — | Iowa |
Pedigree Summary
William + 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 1920 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)