JM
James Mckenna — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this James Mckenna across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents Lewis & Louis — first a head (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | McKenna |
| Given Name | James A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | Salesman |
| Industry | Beverage Manufacturer |
| Class of Worker | PW |
| Income (1939) | 372 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Salesman |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Louis Mckenna | Son | — | ~1940 | |
| James Mckenna | Head | — | 23 | ~1917 |
| Mary Mckenna | Spouse | — | 21 | ~1919 |
Census Appearances
1920
Ramsey, Minnesota
Son, age 3
Ramsey, Minnesota · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenna |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Ramsey, Minnesota
Son, age 13
Ramsey, Minnesota · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenna |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| 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
Ramsey-County, Minnesota
Head, age 23
Ramsey-County, Minnesota · implied b. ~1917 — 3 household members
| Surname | McKenna |
| Given Name | James A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | St. Paul City |
| 1935 Residence (County) | Ramsey |
| Occupation | Salesman |
| Industry | Beverage Manufacturer |
| Class of Worker | PW |
| Income (1939) | 372 |
| Highest Grade | C 2 |
| 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 James Mckenna across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Mckenna (~0.92 confidence) and father Louis Mckenna (~0.92 confidence) and mother Emma Mckenna (~0.92 confidence) and mother Emma Mckenna (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Mckenna
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Louis Mckenna
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Emma Mckenna
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Emma Mckenna
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mckenna
Head · 1940 · age 23 · b. ~1917 · Minnesota
★ 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 — 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-t0627-02003-00481)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Herman Kromer | 33 | Head | Statistical Clerk | Minnesota |
| 42 | Alta Kromer | 31 | Wife | Statistical Clerk | Wisconsin |
| 43 | Annie Doyle | 71 | Head | — | Minnesota |
| 44 | Mrs H H Wathen | 61 | Lodger | — | Minnesota |
| 45 | Virginia Warren | 20 | Niece | — | Minnesota |
| 46 | Charles E Nelson | 65 | Head | Janitor | Denmark |
| 47 | Dorothy H Nelson | 55 | Wife | — | Minnesota |
| 48 | George A G Stapleton | 35 | Head | Auditor | Minnesota |
| 49 | Kathryn Stapleton | 32 | Wife | Social Work | Iowa |
| 50 | Clarence Belanger | 27 | Head | Display Director | Minnesota |
| 51 | Dorothy E Belanger | 24 | Wife | — | Minnesota |
| 52 | George Jr Zuckman | 35 | Head | Civil Engineer | Minnesota |
| 53 | Ethel Zuckman | 30 | Wife | Asst Clerk | New York |
| 54 | Russell F G Clayton | 27 | Head | Engineer | Minnesota |
| 55 | Elizabeth C Clayton | 24 | Wife | — | California |
| 56 | Ruth Caroline Clayton | 2 | Daughter | — | Minnesota |
| 57 | Roger B Hooper | 31 | Head | Civil Engineer | Minnesota |
| 58 | Pearl F Hooper | 30 | Wife | — | Iowa |
| 59 | Stanley B Hooper | 0 | Son | — | Minnesota |
| 60 | Robt George Mc Giffin | 25 | Head | Apprentice Tester | Minnesota |
| 61 | Elsie L Mc Giffin | 47 | Mother | — | Minnesota |
| 62 | Paul G Ecker | 36 | Head | Live Stock Buyer | Nebraska |
| 63 | Helen Virginia Ecker | 36 | Wife | — | Missouri |
| 64 | John Vaughan Ecker | 1 | Son | — | Minnesota |
| 65 | Kenneth Holmquist | 29 | Head | Social Worker | Minnesota |
| 66 | Elvera Holmquist | 30 | Wife | — | Minnesota |
| 67 | J A Berger | 37 | Head | Salesmanager | Missouri |
| 68 | Marie B Berger | 32 | Wife | Saleslady | Missouri |
| 69 | Vacant | None | — | — | — |
| 70 | James A Mckenna THIS PERSON | 23 | Head | Salesman | Iowa |
| 71 | Mary Joe Mckenna | 21 | Wife | Bookkeeper | Minnesota |
| 72 | Louis F Mckenna | 0 | Son | — | Minnesota |
| 73 | Arabella Bugman | 45 | Head | Stenographer | Wisconsin |
| 74 | Jacqueline Bugman | 18 | Daughter | — | Minnesota |
| 75 | Victor E G Misterlund | 41 | Head | Travelling Salesman | Minnesota |
| 76 | Eleona D Misterlund | 39 | Wife | — | Minnesota |
| 77 | Rebecca N Carlson | 20 | Daughter | — | Minnesota |
| 78 | Terence E Reilly | 23 | Head | Route Manager | Iowa |
| 79 | Donna A Reilly | 23 | Wife | — | Minnesota |
| 80 | Frank J Reilly | 63 | Father | Caretaker | Iowa |
Pedigree Summary
James
Gen 1 · 4 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)