LJ
Leroy Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Leroy Jones across the 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Jones |
| Given Name | Leroy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 Prince Frederick |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farm Laborer |
| Township / Ward | Election District 2 Prince Frederick |
| Est. Birth Year | ~1923 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leroy | Age | Birth yr |
|---|---|---|---|---|
| Josephine Jones | Spouse | — | 36 | ~1904 |
| Morris Jones | Head | — | 38 | ~1902 |
| Myrtle Jones | Daughter | — | 15 | ~1925 |
| Leroy Jones | Son | — | 17 | ~1923 |
| Hamilton Jones | Son | — | 5 | ~1935 |
| Pauline Jones | Daughter | — | 13 | ~1927 |
| Infant Jones | Son | — | ~1940 | |
| Morris Jones | Son | — | 7 | ~1933 |
Census Appearances
1930
Calvert, Maryland
Son, age 9
Calvert, Maryland · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Leroy H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Calvert-County, Maryland
Son, age 17
Calvert-County, Maryland · implied b. ~1923 — 8 household members
| Surname | Jones |
| Given Name | Leroy |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 2 Prince Frederick |
| 1935 Residence (County) | Calvert |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Leroy Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leroy Jones
Son · 1940 · age 17 · b. ~1923 · Maryland
★ You are viewing this record
Sibling
Pauline Jones
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myrtle Jones
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Morris Jones
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hamilton Jones
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Infant Jones
Sibling · 1940 · age
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 — Calvert-County, Maryland
Open full size
1940 US Federal Census — Calvert-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01543-00109)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hardy | 25 | Daughter | — | Maryland |
| 2 | Freda Hardy | 25 | Daughter | — | Maryland |
| 3 | Delois Hardy | 12 | Daughter | — | Maryland |
| 4 | William D. Hardy | 1 | Grandson | — | Maryland |
| 5 | Howard Hardy | 23 | Son | Farmer | Maryland |
| 6 | Roberta Hardy | 18 | Daughter | — | Maryland |
| 7 | Cora V. Hardy | 12 | Granddaughter | — | Maryland |
| 8 | Lillian Reed | 12 | Daughter | — | Maryland |
| 9 | Lafayette Brown | 5 | Grandson | — | Maryland |
| 10 | Irving Brown | 35 | Head | Farmer | Maryland |
| 11 | Sadie Brown | 35 | Wife | — | Maryland |
| 12 | Georgia Brown | 9 | Daughter | — | Maryland |
| 13 | Irving Brown | 7 | Son | — | Maryland |
| 14 | Albert Brown | 6 | Son | — | Maryland |
| 15 | Madeline Brown | 4 | Daughter | — | Maryland |
| 16 | Carolester Reed | 18 | Nephew | Farm Laborer | Maryland |
| 17 | William Cox | 70 | Lodger | Farm Laborer | Maryland |
| 18 | Morris Jones | 38 | Head | Farmer | Maryland |
| 19 | Josephine Jones | 36 | Wife | — | Maryland |
| 20 | Leroy Jones THIS PERSON | 17 | Son | Farm Laborer | Maryland |
| 21 | Myrtle Jones | 15 | Daughter | Farm Laborer | Maryland |
| 22 | Pauline Jones | 13 | Daughter | — | Maryland |
| 23 | Morris Jones | 7 | Son | — | Maryland |
| 24 | Hamilton Jones | 5 | Son | — | Maryland |
| 25 | Infant Jones | 0 | Son | — | Maryland |
| 26 | Robert Brown | 28 | Head | Farmer | Maryland |
| 27 | Thurline Brown | 26 | Wife | — | Maryland |
| 28 | Anna B. Bowen | 60 | Head | — | Maryland |
| 29 | S. Lee Bowen | 40 | Son | Proprietor | Maryland |
| 30 | John Jones | 33 | Head | Farmer | Maryland |
| 31 | Virginia Jones | 32 | Wife | — | Maryland |
| 32 | Emery Jones | 7 | Son | — | Maryland |
| 33 | Lucy Jones | 5 | Daughter | — | Maryland |
| 34 | Clifton Jones | 3 | Son | — | Maryland |
| 35 | Kenneth Jones | 0 | Son | — | Maryland |
| 36 | Ella Jones | 55 | Head | Farmer | Maryland |
| 37 | Calvin Jones | 16 | Son | — | Maryland |
| 38 | Edward Gatt | 24 | Head | Truck Driver | Maryland |
| 39 | Ena Gatt | 19 | Wife | — | Maryland |
| 40 | Charles Gatt | 1 | Son | — | Maryland |
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)