RS
Robert Sullivan — 1920 US Census Record
Model Tree available1920 United States Federal Census · Grant, Oklahoma
Our Model Tree links this Robert Sullivan across the 1900, 1910 and 1920 US Censuses in Grant, Oklahoma (XGBoost, ~Confirmed), with identified parents M & Michael — first a son (b.~1890), then head of a 5-person household.
Age 30
b. ~1890
Male
Son
Born: Nebraska
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Grant, Oklahoma |
| Surname | Sullivan |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Occupation | Lawyer |
| Industry | General practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Lawyer |
| Township / Ward | Pond Creek City |
| Est. Birth Year | ~1890 |
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 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Michael Sullivan | Head | — | 70 | ~1850 |
| Alonzo Schiever | Other | — | 20 | ~1900 |
| Robert Sullivan | Son | — | 30 | ~1890 |
| Herbert Sullivan | Son | — | 22 | ~1898 |
| Mary Sullivan | Spouse | — | 66 | ~1854 |
Census Appearances
1900
Grant, Oklahoma
Son, age 14
Grant, Oklahoma · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Birth Month | Apr |
| Birth Year | 1886 |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1910
Grant, Oklahoma
Son, age 22
Grant, Oklahoma · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1920
Grant, Oklahoma
Son, age 30
Grant, Oklahoma · implied b. ~1890 — 5 household members
| Surname | Sullivan |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Occupation | Lawyer |
| Industry | General practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Robert Sullivan across 3 US Census years (1900, 1910 and 1920) in Grant, Oklahoma, using XGBoost record linkage. Identified parents: father M Sullivan (~0.92 confidence) and father Michael Sullivan (~0.92 confidence) and father Michael Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence) and mother Sarah Sullivan (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
M Sullivan
b. ~1848
Source father
● Household
· direct · ~0.92
Father
Michael Sullivan
b. ~1848
Source father
● Household
· direct · ~0.92
Father
Michael Sullivan
b. ~1850
Source father
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1854
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1862
Source mother
● Household
· direct · ~0.92
Mother
Sarah Sullivan
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sullivan
Son · 1920 · age 30 · b. ~1890 · Oklahoma
★ You are viewing this record
Sibling
Herbert Sullivan
Sibling · 1920 · age 22
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
1920 US Federal Census — Grant, Oklahoma
Open full size
1920 US Federal Census — Grant, Oklahoma
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1460unit:0848)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence J. Brown | 39 | Head | Laborer | Kansas |
| 2 | Blanche H. Brown | 27 | Wife | — | Missouri |
| 3 | Ira L. Young | 7 | Step daughter | — | Missouri |
| 4 | Leonard J. Young | 4 | Step son | — | Missouri |
| 5 | Thomas S. Pendergraft | 63 | Head | — | Tennessee |
| 6 | Mary E. Pendergraft | 55 | Wife | — | Tennessee |
| 7 | Charles A. Pendergraft | 37 | Son | Teamster | Missouri |
| 8 | George M. Pendergraft | 19 | Son | Laborer | Arkansas |
| 9 | James H. Pendergraft | 29 | Head | Teamster | Missouri |
| 10 | Allie M. Pendergraft | 28 | Wife | — | Missouri |
| 11 | Mary V. Pendergraft | 4 | Daughter | — | Oklahoma |
| 12 | Grover T. Pendergraft | 1 | Son | — | Oklahoma |
| 13 | Lawrence W. Mc Ginnity | 54 | Head | Farmer | Illinois |
| 14 | Josephine Mc Ginnity | 46 | Wife | — | New York |
| 15 | Edward P. Mc Ginnity | 21 | Son | Laborer | Oklahoma |
| 16 | Olive M. Mc Ginnity | 19 | Daughter | — | Oklahoma |
| 17 | Lawrence E. Mc Ginnity | 17 | Son | — | Oklahoma |
| 18 | Phillip B. Hammond | 52 | Head | Laborer | Iowa |
| 19 | Gussie A. Hammond | 42 | Wife | — | Illinois |
| 20 | John R. Hammond | 16 | Son | — | Oklahoma |
| 21 | Dorothy A. Hammond | 11 | Daughter | — | Oklahoma |
| 22 | Audrey G. Hammond | 10 | Daughter | — | Oklahoma |
| 23 | Thelma L. Hammond | 8 | Daughter | — | Oklahoma |
| 24 | Guy H. Hammond | 5 | Son | — | Oklahoma |
| 25 | Robert L. Hammond | 2 | Son | — | Oklahoma |
| 26 | Arthur G. Bowler | 23 | Head | Machinist | Kansas |
| 27 | Sylvia Bowler | 22 | Wife | — | Kansas |
| 28 | Dwight Bowler | 3 | Son | — | Oklahoma |
| 29 | John P. Whipple | 62 | Head | Farmer | Ohio |
| 30 | Eva H. Whipple | 18 | Daughter | — | Indiana |
| 31 | Forrest L. Johnson | 26 | Head | Grain Buyer | Kansas |
| 32 | Mabel B. Johnson | 26 | Wife | — | New Hampshire |
| 33 | Michael F. Sullivan | 70 | Head | Agent | New York |
| 34 | Mary G. Sullivan | 66 | Wife | — | Michigan |
| 35 | Robert E. Sullivan THIS PERSON | 30 | Son | Lawyer | Nebraska |
| 36 | Herbert E. Sullivan | 22 | Son | — | Nebraska |
| 37 | Alonzo Schiever | 20 | Lodger | Laborer | New York |
| 38 | Frank M. Smith | 57 | Head | Section Hand | Missouri |
| 39 | Mary E. Smith | 63 | Wife | — | Missouri |
| 40 | Otto G. Page | 29 | Head | Section Hand | Arkansas |
| 41 | Maude E. Page | 25 | Wife | — | Arkansas |
| 42 | Warren L. Page | 3 | Son | — | Arkansas |
| 43 | Morton P. Catron | 81 | Head | — | Ohio |
| 44 | Ellen M. Catron | 69 | Wife | — | Indiana |
| 45 | Jacob Green | 80 | Head | — | Tennessee |
| 46 | Mary J. Green | 74 | Wife | — | Missouri |
| 47 | Joseph Schad | 34 | Head | Foreman | Nebraska |
| 48 | Mary E. Schad | 32 | Wife | — | Kansas |
| 49 | Calvin M. Schad | 10 | Son | — | Oklahoma |
| 50 | Rossie L. Schad | 9 | Son | — | Oklahoma |
Pedigree Summary
Robert + 1 sibling
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 1920 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)