MS
Michael Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Michael Sullivan across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents John & Mary — first a son (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Sullivan |
| Given Name | Michael L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Lineman |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Lineman |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1906 |
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 Michael | Age | Birth yr |
|---|---|---|---|---|
| John Sullivan | Head | — | 73 | ~1867 |
| Anne Mcalle | Other | — | 65 | ~1875 |
| Michael Sullivan | Son | — | 34 | ~1906 |
| Mary Sullivan | Spouse | — | 71 | ~1869 |
Census Appearances
1920
Marion, Indiana
Son, age 15
Marion, Indiana · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 24
Marion, Indiana · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 34
Marion-County, Indiana · implied b. ~1906 — 4 household members
| Surname | Sullivan |
| Given Name | Michael L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Lineman |
| Industry | Telephone Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Michael Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and father John Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Sullivan
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1869
Source mother
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
John Sullivan
b. ~1874
Source father
● Household
· direct · ~0.92
This person
Anchor record
Michael Sullivan
Son · 1940 · age 34 · b. ~1906 · Indiana
★ 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01129-00183)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertie B. Bohannon | 62 | Head | — | Indiana |
| 42 | Chester J. Jackson | 33 | Son | Carpenter | Indiana |
| 43 | Thomas H. Northrup | 70 | Head | — | New Jersey |
| 44 | Ruth M. Northrup | 13 | Daughter | — | Indiana |
| 45 | Charles S. Mcbride | 51 | Head | Stationary Fireman | Indiana |
| 46 | Daisy M. Mcbride | 44 | Wife | Marker | Indiana |
| 47 | William J. Bowman | 50 | Head | Night Watchman | Missouri |
| 48 | Minnie B. Bowman | 52 | Wife | — | Indiana |
| 49 | Charles Hunter | 16 | Grandson | Messenger | Indiana |
| 50 | John M. Sullivan | 73 | Head | — | Irish Free State |
| 51 | Mary Sullivan | 71 | Wife | — | Irish Free State |
| 52 | Michael L. Sullivan THIS PERSON | 34 | Son | Lineman | Indiana |
| 53 | Anne Mcalle | 65 | Sister-in-law | — | Irish Free State |
| 54 | Sam Vella | 73 | Head | Street Cleaner | Italy |
| 55 | Emma F. Vella | 52 | Wife | — | Indiana |
| 56 | Chalmers H. Determan | 40 | Head | Carpenter | Indiana |
| 57 | Emma B. Determan | 40 | Wife | Hostess | Kentucky |
| 58 | Charles W. Pitzner | 25 | Step-son | Installer | Indiana |
| 59 | Marjorie B. Pitzner | 25 | Step-daughter | — | Indiana |
| 60 | Rosalie A. Pitzner | 2 | Granddaughter | — | Indiana |
| 61 | Kenneth R. Gividen | 22 | Lodger | Transfer-Boy | Indiana |
| 62 | Rena Mae Gividen | 14 | Lodger | — | Indiana |
| 63 | James L. Morris | 38 | Head | Stationary Engineer | Indiana |
| 64 | Mary V. Morris | 39 | Wife | — | Kentucky |
| 65 | Mary E. Morris | 16 | Daughter | — | Indiana |
| 66 | Sarah E. Morris | 78 | Mother | — | Indiana |
| 67 | Albert H. Mayo | 47 | Head | Conductor | Canada English |
| 68 | Mary E. Mayo | 46 | Wife | — | Scotland |
| 69 | Clayborn H. Brannum | 33 | Head | Watchman | Tennessee |
| 70 | Velsie Brannum | 29 | Wife | — | Kentucky |
| 71 | Thomas C. Brannum | 5 | Son | — | Indiana |
| 72 | Leonard A. Binnion | 36 | Head | Machinist | Kentucky |
| 73 | Selma J. Binnion | 30 | Wife | — | Kentucky |
| 74 | Sharon Lee Binnion | 0 | Daughter | — | Indiana |
| 75 | Clarence J. Robertson | 30 | Head | Assistant Foreman | Indiana |
| 76 | Vivian G. Robertson | 28 | Wife | — | Indiana |
| 77 | Jeannine Robertson | 6 | Daughter | — | Indiana |
| 78 | Bedford R. Gregory | 35 | Head | Order Clerk | Tennessee |
| 79 | J. Cornelia Gregory | 34 | Wife | Machine Operator | Kentucky |
| 80 | Patricia A. Gregory | 8 | Daughter | — | Indiana |
Pedigree Summary
Michael
Gen 1 · 6 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)