JD
John Donnelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ottawa-County, Michigan
Our Model Tree links this John Donnelly across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Michigan (XGBoost, ~Confirmed), with identified parents Mary & Bernard — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Michigan |
| Surname | Donnelly |
| Given Name | John B. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Holland City |
| 1935 Residence (County) | Ottawa |
| Additional Details | |
| Occupation | Manager |
| Industry | manufacture of mirrors |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 156 |
| Highest Grade | C 6 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Manager |
| Township / Ward | Holland City |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Donnelly | Head | — | 61 | ~1879 |
| Janice Klein | Other | — | 52 | ~1888 |
| John Donnelly | Son | — | 27 | ~1913 |
| Bernard Donnelly | Son | — | 23 | ~1917 |
Census Appearances
1920
Ottawa, Michigan
Son, age 7
Ottawa, Michigan · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Ottawa, Michigan
Son, age 17
Ottawa, Michigan · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donnelly |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Ottawa-County, Michigan
Son, age 27
Ottawa-County, Michigan · implied b. ~1913 — 4 household members
| Surname | Donnelly |
| Given Name | John B. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Holland City |
| 1935 Residence (County) | Ottawa |
| Occupation | Manager |
| Industry | manufacture of mirrors |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 156 |
| Highest Grade | C 6 |
| 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 John Donnelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Donnelly (~0.92 confidence) and father Bernard Donnelly (~0.92 confidence) and mother Mary Donnelly (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Donnelly
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Bernard Donnelly
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mary Donnelly
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Donnelly
Son · 1940 · age 27 · b. ~1913 · Michigan
★ You are viewing this record
Sibling
Bernard Donnelly
Sibling · 1940 · age 23
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 — Ottawa-County, Michigan
Open full size
1940 US Federal Census — Ottawa-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01808-00715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mattie Ten Putten | 66 | sister | Manager | Michigan |
| 2 | Gertrude Schutter | 23 | maid | House-Work | Michigan |
| 3 | Albert Vroshuisen | 76 | Head | — | Michigan |
| 4 | Mary Vroshuisen | 72 | wife | — | Michigan |
| 5 | Edward Slooter | 73 | Head | — | Michigan |
| 6 | B. Rose Slooter | 46 | daughter | — | Michigan |
| 7 | Gus Hohl | 52 | Head | Department Manager | Kansas |
| 8 | Vera Hohl | 52 | wife | — | Iowa |
| 9 | Gunnar Anderson | 46 | Head | Decorator | Norway |
| 10 | Martha Anderson | 39 | wife | — | Michigan |
| 11 | Mary Anne Anderson | 19 | niece | Stenographer | Michigan |
| 12 | Shirley Jane Anderson | 15 | niece | — | Michigan |
| 13 | Ruth E. Knutson | 15 | sister in law | — | Michigan |
| 14 | Oscar Anderson | 33 | brother | Carpenter | Norway |
| 15 | Andries P. Steketee | 30 | Head | Credit Manager | Michigan |
| 16 | Emma Jane Steketee | 27 | wife | — | Michigan |
| 17 | Mary Ellen Steketee | 12 | daughter | — | Michigan |
| 18 | Myron C. Potter | 30 | Head | Screen Man | Illinois |
| 19 | Joan Potter | 24 | wife | — | Illinois |
| 20 | Frances Potter | 1 | daughter | — | Michigan |
| 21 | Neil Van Leeuwen | 37 | Head | Bookkeeper | Michigan |
| 22 | Wanda Van Leeuwen | 30 | wife | — | Indiana |
| 23 | Judith Van Leeuwen | 2 | daughter | — | Michigan |
| 24 | Mary E. Walter | 72 | Head | — | Canada-English |
| 25 | Emma C. Seck | 39 | Head | Office Clerk | Wisconsin |
| 26 | Helen Anna Frick | 25 | partner | Stenographer | Wisconsin |
| 27 | Thora Marie Snow | 32 | partner | Stenographer | Nebraska |
| 28 | W. J. Olive | 62 | Head | General Agent | Canada-English |
| 29 | Margaret Olive | 58 | wife | — | Michigan |
| 30 | James Warner | 47 | Head | English Dept. | Indiana |
| 31 | Alice Warner | 43 | wife | — | Illinois |
| 32 | Robert Warner | 15 | son | — | Iowa |
| 33 | Kenneth Osborne | 32 | partner | Director Of Music | Iowa |
| 34 | Beryl Osborne | 27 | partner's wife | — | Michigan |
| 35 | Lynn Osborne | 1 | partner's daughter | — | Michigan |
| 36 | Mary C. Donnelly | 61 | Head | — | Illinois |
| 37 | John B. Donnelly THIS PERSON | 27 | son | Manager | Michigan |
| 38 | Bernard P. Donnelly | 23 | son | Asst. Of Manager | Michigan |
| 39 | Janice Klein | 52 | servant | Maid | Michigan |
Pedigree Summary
John + 1 sibling
Gen 1 · 3 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)