RM
Robert May — 1930 US Census Record
Model Tree available1930 United States Federal Census · Lucas, Ohio
Our Model Tree links this Robert May across the 1920, 1930 and 1940 US Censuses in Lucas, Ohio (XGBoost, ~Confirmed), with identified parents Mary & Herbert — first a son (b.~1918), then head of a 6-person household.
Age 12
b. ~1918
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lucas, Ohio |
| Surname | May |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Sylvania Township |
| Est. Birth Year | ~1918 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Herbert May | Son | — | 8 | ~1922 |
| Robert May | Son | — | 12 | ~1918 |
| Donald May | Son | — | 6 | ~1924 |
| Meta May | Daughter | — | 4 | ~1926 |
| Herbert May | Head | — | 36 | ~1894 |
| Mary May | Spouse | — | 37 | ~1893 |
Census Appearances
1920
Lucas, Ohio
Son, age 2
Lucas, Ohio · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | May |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Son, age 12
Lucas, Ohio · implied b. ~1918 — 6 household members
| Surname | May |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 22
Lucas-County, Ohio · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mey |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Sylvania Twp |
| 1935 Residence (County) | Lucas |
| Occupation | Substitute Clerk |
| Industry | U.S. Mail |
| Class of Worker | GW |
| Hours Worked | 12 |
| Income (1939) | 300 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 May across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary May (~0.92 confidence) and father Herbert May (~0.92 confidence) and mother Elsie May (~0.92 confidence) and father Herbert Mey (~0.92 confidence) and father Harold May (~0.92 confidence) and mother Maud Mey (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary May
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Herbert May
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Elsie May
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
Herbert Mey
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Harold May
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Maud Mey
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert May
Son · 1930 · age 12 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Herbert May
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald May
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Meta May
Sibling · 1930 · age 4
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
1930 US Federal Census — Lucas, Ohio
Open full size
1930 US Federal Census — Lucas, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1832:1104)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Colleen Brock | 4 | Daughter | — | Michigan |
| 2 | Marcella Brock | 2 | Daughter | — | Michigan |
| 3 | Frederick Brock | 1 | Son | — | Ohio |
| 4 | James T Smith | 36 | Head | — | Indiana |
| 5 | Gretchen Smith | 33 | Wife | Laborer | Indiana |
| 6 | Lucille M Smith | 16 | Daughter | — | Indiana |
| 7 | Ralph L Smith | 14 | Son | — | Indiana |
| 8 | Gertrude Smith | 13 | Daughter | — | Indiana |
| 9 | Elizabeth J Smith | 11 | Daughter | — | Indiana |
| 10 | John L Smith | 38 | Brother | — | Indiana |
| 11 | Herbert F May | 36 | Head | Stationary Engineer | Ohio |
| 12 | Mary E May | 37 | Wife | Salesman | Ohio |
| 13 | Robert J May THIS PERSON | 12 | Son | — | Ohio |
| 14 | Donald May | 6 | Son | — | Ohio |
| 15 | Herbert Jr May | 8 | Son | — | Ohio |
| 16 | Meta P May | 4 | Daughter | — | Ohio |
| 17 | Hugh Heater | 39 | Head | Carpenter | Maryland |
| 18 | Mabel Heater | 34 | Wife | — | Ohio |
| 19 | Charles Heater | 14 | Son | — | Pennsylvania |
| 20 | Grace Heater | 12 | Daughter | — | Ohio |
| 21 | Nellie Heater | 11 | Daughter | — | Ohio |
| 22 | Billie Heater | 8 | Son | — | Ohio |
| 23 | Hazel Heater | 6 | Daughter | — | Ohio |
| 24 | Ted Rockhill | 25 | Head | — | Indiana |
| 25 | Ruth Rockhill | 27 | Wife | Laborer | Ohio |
| 26 | Cordelia Rockhill | 3 | Daughter | Laborer | Ohio |
| 27 | Elizabeth Ross | 11 | Step-daughter | — | Ohio |
| 28 | Leroy Ross | 10 | Step-son | — | Ohio |
| 29 | Cora Dutton | 56 | Head | — | Ohio |
| 30 | James Dutton | 16 | Son | — | Ohio |
| 31 | Edward Smith | 25 | Boarder | — | Germany |
| 32 | Ralph Rinaldi | 34 | Head | Stone Plant Foreman | Italy |
| 33 | Martha Rinaldi | 33 | Wife | Engineer Stationary | Ohio |
| 34 | Rosa Virginia Rinaldi | 12 | Niece | — | Ohio |
| 35 | David Bows | 75 | Head | — | Ohio |
| 36 | Anna V Bows | 62 | Wife | — | Michigan |
| 37 | Wilber Schaler | 35 | Head | — | Michigan |
| 38 | Ruth Schaler | 32 | Wife | Superintendent | Ohio |
| 39 | Lizzie Fisher | 74 | Head | — | New York |
| 40 | Lena Fisher | 69 | Sister | — | Ohio |
| 41 | Claude Apple | 39 | Head | — | Ohio |
| 42 | Cora Apple | 38 | Wife | Mechanic | Ohio |
| 43 | Mary E Apple | 15 | Daughter | — | Ohio |
| 44 | Paul Apple | 13 | Son | — | Ohio |
| 45 | Noel Apple | 12 | Son | — | Ohio |
| 46 | Joann Apple | 1 | Daughter | — | Ohio |
| 47 | Charles Wodury | 24 | Head | — | Ohio |
| 48 | Irene Wodury | 21 | Wife | Shovel Engineer | Ohio |
| 49 | Fred F Ritzman | 25 | Head | Engineer | Pennsylvania |
| 50 | Luella Ritzman | 20 | Wife | — | Pennsylvania |
Pedigree Summary
Robert + 3 siblings
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 1930 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)