RL
Robert Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Robert Leonard across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Harriet — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Penna
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Leonard |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia city |
| 1935 Residence (County) | Phila. |
| Additional Details | |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1050 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Occupation | Clerk |
| Township / Ward | Philadelphia City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Leonard | Son | — | 24 | ~1916 |
| Harriett Leonard | Spouse | — | 52 | ~1888 |
| Thomas Leonard | Head | — | 51 | ~1889 |
| Robert Leonard | Son | — | 22 | ~1918 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 2
Philadelphia, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | England |
| Mother's Birthplace | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Philadelphia, Pennsylvania
Son, age 12
Philadelphia, Pennsylvania · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | England |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 22
Philadelphia-County, Pennsylvania · implied b. ~1918 — 4 household members
| Surname | Leonard |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Penna |
| 1935 Residence (City) | Philadelphia city |
| 1935 Residence (County) | Phila. |
| Occupation | Clerk |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1050 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Leonard (~0.92 confidence) and mother Harriet Leonard (~0.92 confidence) and mother Harriett Leonard (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Leonard
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Harriet Leonard
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Harriett Leonard
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Leonard
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
John Leonard
Sibling · 1940 · age 24
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03754-00490)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cora M. Hoke | 43 | Wife | — | Penna |
| 42 | Joseph F. Monahan | 43 | Head | Draftsman | Penna |
| 43 | Cora M. Monahan | 37 | Wife | — | Penna |
| 44 | Joseph Monahan | 10 | Son | — | Penna |
| 45 | Frank Barrett | 36 | Head | Photo Engraver | Penna |
| 46 | Verna Barrett | 38 | Wife | — | Penna |
| 47 | Harriett Barrett | 78 | Mother | — | Penna |
| 48 | Richard J. Partridge | 39 | Head | Lawyer | Penna |
| 49 | Sara B. Partridge | 33 | Wife | — | Penna |
| 50 | Richard J. Jr. Partridge | 7 | Son | — | Penna |
| 51 | David Allen Partridge | 1 | Son | — | Penna |
| 52 | J. Ellis Kamy | 39 | Head | Underwriter | Penna |
| 53 | Sara L. Kamy | 37 | Wife | — | Penna |
| 54 | J. Ellis Jr. Kamy | 11 | Son | — | Penna |
| 55 | Albert G. Henson | 33 | Head | Clerk | Penna |
| 56 | Florence Henson | 26 | Wife | — | Penna |
| 57 | William Penman | 33 | Head | Salesman | Penna |
| 58 | Florence Penman | 30 | Wife | — | Penna |
| 59 | Edward W. J. Penman | 5 | Son | — | Penna |
| 60 | Joan L. Penman | 3 | Daughter | — | Penna |
| 61 | John P. Conaway | 52 | Head | Evangelist | Penna |
| 62 | Elizabeth Conaway | 44 | Wife | Teacher | Penna |
| 63 | Thomas Leonard | 51 | Head | Bricklayer | England |
| 64 | Harriett Leonard | 52 | Wife | — | Penna |
| 65 | John D. Leonard | 24 | Son | Clerk | Penna |
| 66 | Robert D. Leonard THIS PERSON | 22 | Son | Clerk | Penna |
| 67 | Russell Worall | 47 | Head | Clerk | Penna |
| 68 | Margaret Worall | 50 | Wife | — | Penna |
| 69 | Margaret Worall | 19 | Daughter | Comptometer Op. | Penna |
| 70 | Ruth Worall | 11 | Daughter | — | Penna |
| 71 | Charles R. Riley | 37 | Head | Office Manager | Penna |
| 72 | Sarah A. Riley | 37 | Wife | — | Penna |
| 73 | Richard Riley | 10 | Son | — | Penna |
| 74 | Kevin Riley | 6 | Son | — | Penna |
| 75 | Daniel F. Shea | 47 | Head | Musician | Penna |
| 76 | Florence Shea | 40 | Wife | — | Penna |
| 77 | Daniel F. Shea | 18 | Son | — | Penna |
| 78 | Mary C. Shea | 16 | Daughter | — | Penna |
| 79 | Rita Shea | 10 | Daughter | — | Penna |
| 80 | Kathleen Shea | 5 | Daughter | — | Penna |
Related Census Records
Pedigree Summary
Robert + 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)