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John Marsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Marsh across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 5-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Marsh |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | Yes 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1929 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marybelle Marsh | Spouse | — | 40 | ~1900 |
| Marjorie Marsh | Daughter | — | 19 | ~1921 |
| John Marsh | Son | — | 11 | ~1929 |
| John Marsh | Head | — | 43 | ~1897 |
| Edward Marsh | Son | — | 18 | ~1922 |
Census Appearances
1930
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marsh |
| Given Name | John J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 11
Cook-County, Illinois · implied b. ~1929 — 5 household members
| Surname | Marsh |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | Yes 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 John Marsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Marsh
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Marjorie Marsh
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Marsh
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00942-00206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gunhild Soderlund | 67 | Boarder | — | Sweden |
| 2 | Gerald H. Meyer | 43 | Head | News Agent | Holland |
| 3 | Freda Meyer | 41 | Wife | — | Germany |
| 4 | George P. Panich | 63 | Head | Labor | Jugoslavia |
| 5 | Clarence Mcdillan | 36 | Head | Motorcycle Officer | Illinois |
| 6 | Irene Mcdillan | 33 | Wife | — | Illinois |
| 7 | Irene Mcdillan | 12 | Daughter | — | Illinois |
| 8 | Clarence Mcdillan | 10 | Son | — | Illinois |
| 9 | La Verne Mcdillan | 6 | Daughter | — | Illinois |
| 10 | Norma Mcdillan | 3 | Daughter | — | Illinois |
| 11 | William D. Triplett | 39 | Head | Electrician | Illinois |
| 12 | Mildred Triplett | 37 | Wife | — | Illinois |
| 13 | Joyce Triplett | 12 | Daughter | — | Illinois |
| 14 | Alice Triplett | 11 | Daughter | — | Illinois |
| 15 | Walter O. Liebrandt | 37 | Head | Car Foreman | Illinois |
| 16 | Shirley Liebrandt | 15 | Daughter | — | Illinois |
| 17 | Harry Hayes | 24 | Head | Millwright Helper | Montana |
| 18 | Mildred Hayes | 21 | Wife | — | Illinois |
| 19 | Patricia Hayes | 2 | Daughter | — | Illinois |
| 20 | Thomas Hayes | 1 | Son | — | Illinois |
| 21 | William J. Rutger | 65 | Head | Boiler Maker | Illinois |
| 22 | John Rutger | 57 | Brother | Crane Man | Illinois |
| 23 | Florence Rutger | 53 | Sister | — | Illinois |
| 24 | Leroy Rutger | 16 | Nephew | Paper Boy | Illinois |
| 25 | Kathleen Rutger | 15 | Niece | — | Illinois |
| 26 | Elmer O. Fritzler | 38 | Head | Steel Inspector | Illinois |
| 27 | Margaret Fritzler | 78 | Mother | — | Illinois |
| 28 | Steven P. Marich | 24 | Head | Machine Hand | Illinois |
| 29 | Emily Marich | 22 | Wife | — | Illinois |
| 30 | Beatrice Marich | 4 | Daughter | — | Illinois |
| 31 | Frank Mihan | 25 | Head | Loader | Illinois |
| 32 | Dorothy D. Mihan | 22 | Wife | Box Maker | Illinois |
| 33 | Line Left Blank By Mistake Mihan | None | — | — | — |
| 34 | John Marsh | 43 | Head | Clerk | Wisconsin |
| 35 | Marybelle Marsh | 40 | Wife | — | Michigan |
| 36 | Marjorie Marsh | 19 | Daughter | Beautician | Illinois |
| 37 | Edward Marsh | 18 | Son | Labor | Illinois |
| 38 | John Jr. Marsh THIS PERSON | 11 | Son | — | Illinois |
| 39 | William Kenter | 57 | Head | Switch Man | England |
| 40 | Sarah Kenter | 24 | Daughter | Sales Woman | Illinois |
Related Census Records
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)