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Dorothy Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Dorothy Long across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Alvin & Martin — first a daughter (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Long |
| Given Name | Dorothy M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Maumee Village |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | Clerk |
| Industry | Foreign Domestic Service |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 1200 |
| Highest Grade | C 5 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerk |
| Township / Ward | Maumee Village |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Caroline Long | Daughter | — | 19 | ~1921 |
| Dorothy Long | Daughter | — | 23 | ~1917 |
| Reva Long | Spouse | — | 49 | ~1891 |
| R Long | Head | — | 51 | ~1889 |
| Robert Long | Son | — | 22 | ~1918 |
Census Appearances
1920
Lucas, Ohio
Daughter, age 3
Lucas, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Dorothy M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| 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
Daughter, age 14
Lucas, Ohio · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Dorothy E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| 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
Daughter, age 23
Lucas-County, Ohio · implied b. ~1917 — 5 household members
| Surname | Long |
| Given Name | Dorothy M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Maumee Village |
| 1935 Residence (County) | Lucas |
| Occupation | Clerk |
| Industry | Foreign Domestic Service |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 1200 |
| Highest Grade | C 5 |
| 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 Dorothy Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Long (~0.92 confidence) and father Martin Long (~0.92 confidence) and father R Long (~0.92 confidence) and mother Marie Long (~0.92 confidence) and mother Reva Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Long
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Martin Long
b. ~1874
Source father
● Household
· direct · ~0.92
Father
R Long
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Marie Long
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Reva Long
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Long
Daughter · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
Caroline Long
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Long
Sibling · 1940 · 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
1940 US Federal Census — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03106-00834)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret E. Puhl | 54 | Head | — | Ohio |
| 42 | Thomas G. Morrison | 66 | Brother-in-law | — | Indiana |
| 43 | Rose A. Morrison | 63 | Sister | — | Ohio |
| 44 | John Remmel | 67 | Lodger | — | Ohio |
| 45 | Lynn N. Nicholas | 31 | Head | Principal | Ohio |
| 46 | Margaret B. Nicholas | 28 | Wife | — | Ohio |
| 47 | Marilyn S. Nicholas | 5 | Daughter | — | Ohio |
| 48 | Charles S. Maxson | 38 | Head | Manager | Ohio |
| 49 | Helen M. Maxson | 33 | Wife | — | Ohio |
| 50 | Myron F. Maxson | 5 | Son | — | Ohio |
| 51 | Leroy B. Anderson | 30 | Head | Assistant Manager | Ohio |
| 52 | Marjorie M. Anderson | 27 | Wife | — | Ohio |
| 53 | Thomas L. Anderson | 5 | Son | — | Ohio |
| 54 | John S. Anderson | 2 | Son | — | Ohio |
| 55 | Donald R. Anderson | 0 | Son | — | Ohio |
| 56 | Cecil R. Hubbard | 35 | Head | Chiropractor | England |
| 57 | Hazel M. Hubbard | 35 | Wife | — | Canada-English |
| 58 | Donald C. Hubbard | 16 | Son | — | Illinois |
| 59 | Mable V. Booth | 59 | Head | — | Ohio |
| 60 | R. Lincoln Long | 51 | Head | Clergyman | Kentucky |
| 61 | Reva N. Long | 49 | Wife | — | Illinois |
| 62 | Dorothy M. Long THIS PERSON | 23 | Daughter | Clerk | Ohio |
| 63 | Robert L. Long | 22 | Son | — | Ohio |
| 64 | Caroline B. Long | 19 | Daughter | — | Ohio |
| 65 | Harold P. Knorr | 37 | Head | Electrician | Ohio |
| 66 | Gladys E. Knorr | 30 | Wife | — | Ohio |
| 67 | Alice L. Knorr | 12 | Daughter | — | Ohio |
| 68 | Barbara J. Knorr | 9 | Daughter | — | Ohio |
| 69 | William M. Carpenter | 51 | Head | Conductor | Ohio |
| 70 | Vivian F. Carpenter | 47 | Wife | — | Ohio |
| 71 | Nora T. Lynch | 58 | Head | — | Ohio |
| 72 | Patricia A. Lynch | 14 | Daughter | — | Ohio |
| 73 | William P. Clarke | 70 | Head | Accountant | Ohio |
| 74 | Sara A. Clarke | 44 | Wife | — | Michigan |
| 75 | Guy R. Kurt | 43 | Head | Credit Manager | Indiana |
| 76 | Martha J. Kurt | 43 | Wife | — | Ohio |
| 77 | Raymond B. Kurt | 20 | Son | — | Ohio |
| 78 | Marjorie C. Kurt | 17 | Daughter | — | Ohio |
| 79 | Orville E. Charles | 64 | Head | Salesman | Ohio |
| 80 | Martha R. Charles | 56 | Wife | Curtain Maker | Ohio |
Pedigree Summary
Dorothy + 2 siblings
Gen 1 · 5 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)