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John Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this John Mann across the 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Mann |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Laborer |
| Industry | Brewery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1916 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Mann | Head | — | 56 | ~1884 |
| John Mann | Son | — | 24 | ~1916 |
| Dorothy Mann | Daughter | — | 26 | ~1914 |
| Leo Mann | Son | — | 12 | ~1928 |
| Rose Mann | Daughter | — | 15 | ~1925 |
| Ida Mann | Spouse | — | 54 | ~1886 |
Census Appearances
1930
Ramsey, Minnesota
Son, age 14
Ramsey, Minnesota · implied b. ~1916 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ramsey-County, Minnesota
Son, age 24
Ramsey-County, Minnesota · implied b. ~1916 — 6 household members
| Surname | Mann |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Occupation | Laborer |
| Industry | Brewery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Mann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mann
Son · 1940 · age 24 · b. ~1916 · Minnesota
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Sibling
Leo Mann
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mann
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Mann
Sibling · 1940 · age 26
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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01996-00918)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard J. Kerner | 21 | Boarder | Clerk | Minnesota |
| 42 | James Kohler | 67 | Head | — | Minnesota |
| 43 | Joseph Kohler | 58 | Brother | Laborer | Minnesota |
| 44 | Charles Kohler | 56 | Brother | Helper | Minnesota |
| 45 | Steve Adrian | 56 | Head | Boilermaker | Austria |
| 46 | Elizabeth Adrian | 52 | Wife | — | Austria |
| 47 | Mike F. Adrian | 24 | Son | Printer | Minnesota |
| 48 | Ralph Adrian | 20 | Son | New Worker | Minnesota |
| 49 | Raymond Adrian | 16 | Son | — | Minnesota |
| 50 | Edward J. Lauer | 48 | Head | Cashier | Minnesota |
| 51 | Emma Lauer | 56 | Wife | Machine Operator | Minnesota |
| 52 | Edward H. Johnson | 45 | Son-in-law | Laborer | Minnesota |
| 53 | Margaret H. Johnson | 40 | Sister | — | Minnesota |
| 54 | Richard E. Johnson | 8 | Nephew | — | Minnesota |
| 55 | Frank J. Kohler | 53 | Head | Retail Salesman | Minnesota |
| 56 | Rose G. Kohler | 49 | Wife | — | Minnesota |
| 57 | Ann M. Kohler | 23 | Daughter | Comptometer Operator | Minnesota |
| 58 | Lawrence Ohl | 70 | Head | — | Algue |
| 59 | Elizabeth B. Ohl | 58 | Wife | — | Minnesota |
| 60 | Raymond Ohl | 19 | Son | — | Minnesota |
| 61 | John Mann | 56 | Head | Proprietor | Austria |
| 62 | Ida B. Mann | 54 | Wife | — | Austria |
| 63 | Dorothy Mann | 26 | Daughter | — | Minnesota |
| 64 | John R. Mann THIS PERSON | 24 | Son | Laborer | Minnesota |
| 65 | Rose Mary Mann | 15 | Daughter | — | Minnesota |
| 66 | Leo F. Mann | 12 | Son | — | Minnesota |
| 67 | Mary Blasius | 80 | Head | — | Minnesota |
| 68 | Estelle Blasius | 50 | Daughter | Stenographer | Minnesota |
| 69 | Henry W. Blasius | 48 | Son | Bottler | Minnesota |
| 70 | John Horlath | 49 | Lodger | Laborer | Austria |
| 71 | Edward Sersen | 44 | Lodger | Station Superintendent | Minnesota |
| 72 | Nickolas Blasius | 40 | Son | — | Minnesota |
| 73 | — | None | — | — | — |
| 74 | John Guble | 76 | Head | — | Germany |
| 75 | Raymond Getaile | 49 | Son-in-law | Transportation Manager | Minnesota |
| 76 | Estelle L. Getaile | 47 | Daughter | — | Pennsylvania |
| 77 | Raymond J. Getaile | 23 | Son | Drafting Clerk | Minnesota |
| 78 | Robert M. Getaile | 17 | Son | — | Minnesota |
| 79 | Frank S. Leaffee | 33 | Head | Delivery Man | Minnesota |
| 80 | Clara R. Leaffee | 31 | Wife | — | Minnesota |
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)