RA
Robert Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Saginaw-County, Michigan
Our Model Tree links this Robert Alexander across the 1910, 1920, 1930 and 1940 US Censuses in Saginaw-County, Michigan (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a head (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Saginaw-County, Michigan |
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Saginaw City |
| 1935 Residence (County) | Saginaw |
| Additional Details | |
| Occupation | Tool Maker |
| Industry | Steering Gear Auto Industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2200 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Tool Maker |
| Township / Ward | Saginaw City |
| Est. Birth Year | ~1910 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marilyn Alexander | Daughter | — | 8 | ~1932 |
| Patricia Alexander | Daughter | — | 4 | ~1936 |
| Norma Alexander | Daughter | — | 6 | ~1934 |
| Robert Alexander | Head | — | 30 | ~1910 |
| Mary Alexander | Spouse | — | 30 | ~1910 |
Census Appearances
1910
Saginaw, Michigan
Son, age
Saginaw, Michigan · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
Saginaw, Michigan
Son, age 10
Saginaw, Michigan · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Saginaw, Michigan
Son, age 20
Saginaw, Michigan · implied b. ~1910 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Michigan |
| Occupation | (illegible) |
| Industry | Tools Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Saginaw-County, Michigan
Head, age 30
Saginaw-County, Michigan · implied b. ~1910 — 5 household members
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Saginaw City |
| 1935 Residence (County) | Saginaw |
| Occupation | Tool Maker |
| Industry | Steering Gear Auto Industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2200 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Robert Alexander across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Alexander (~0.92 confidence) and father Robert Alexander (~0.92 confidence) and mother Mary Alexander (~0.92 confidence) and father Robert Alexander (~0.92 confidence) and mother Mary Alexander (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Alexander
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Robert Alexander
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Alexander
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Robert Alexander
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mary Alexander
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Alexander
Head · 1940 · age 30 · b. ~1910 · Michigan
★ 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 — Saginaw-County, Michigan
Open full size
1940 US Federal Census — Saginaw-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01814-00106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Phyllis Frickle | 9 | Grand Daughter | — | Michigan |
| 2 | Jacqueline Frickle | 8 | Grand Daughter | — | Michigan |
| 3 | George Jackson | 39 | Head | Die Maker | England |
| 4 | May S Jackson | 36 | Wife | — | England |
| 5 | Freda Jackson | 12 | Daughter | — | Michigan |
| 6 | Haley Jackson | 6 | Son | — | Michigan |
| 7 | John Forbes | 65 | Head | Odd Jobs | Canada |
| 8 | Maude Forbes | 62 | Wife | — | England |
| 9 | Albert Hall | 56 | Head | Cashier | Michigan |
| 10 | Loretta B Hall | 58 | Wife | — | Michigan |
| 11 | Alberta Hall | 22 | Daughter | Bookkeeper | Michigan |
| 12 | Robert Alexander THIS PERSON | 30 | Head | Tool Maker | Michigan |
| 13 | Mary Alexander | 30 | Wife | — | Pennsylvania |
| 14 | Marilyn Alexander | 8 | Daughter | — | Michigan |
| 15 | Norma Alexander | 6 | Daughter | — | Michigan |
| 16 | Patricia Alexander | 4 | Daughter | — | Michigan |
| 17 | Ernest Fitch | 34 | Head | Cafeteria Foreman | Michigan |
| 18 | Lena D Fitch | 30 | Wife | — | Michigan |
| 19 | Barbara Fitch | 6 | Daughter | — | Michigan |
| 20 | Ernest Jr Fitch | 3 | Son | — | Michigan |
| 21 | Robert Fitch | 22 | Brother | — | England |
| 22 | — | None | — | — | — |
| 23 | Richard Dethen | 43 | Head | Fireman | Germany |
| 24 | Mary Dethen | 36 | Wife | Chambermaid | Michigan |
| 25 | Leon Frenzel | 18 | Step Son | Timberland Improvement | Michigan |
| 26 | Clarence Frenzel | 17 | Step Son | — | Michigan |
| 27 | Donald Frenzel | 16 | Step Son | — | Michigan |
| 28 | Adeline Frenzel | 15 | Step Daughter | — | Michigan |
| 29 | William Buckler | 33 | Head | Mail Carrier | Michigan |
| 30 | Elizabeth Buckler | 30 | Wife | — | Michigan |
| 31 | Gwendolyn Buckler | 5 | Daughter | — | Michigan |
| 32 | Meta Feyls | 52 | Mother in law | — | Michigan |
| 33 | Julius Bender | 25 | Head | Core Maker | Michigan |
| 34 | Margaret Bender | 25 | Wife | Secretary | Michigan |
| 35 | Frank Rozak | 46 | Head | Locomotive Fireman | Michigan |
| 36 | Emily Rozak | 57 | Wife | — | Poland |
| 37 | William Rozak | 16 | Son | — | Michigan |
| 38 | Roman Rozak | 10 | Son | — | Michigan |
| 39 | Jeanette Rozak | 8 | Daughter | — | Michigan |
| 40 | Bruce Davis | 31 | Head | Beauty Shop Delicatessen | Michigan |
Pedigree Summary
Robert
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)