LJ
Lawrence Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Lawrence Jones across the 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Jones |
| Given Name | Lawrence Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Chesapeake Beach |
| Est. Birth Year | ~1926 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Lawrence Jones | Head | — | 44 | ~1896 |
| Clarice Jones | Daughter | — | 2 | ~1938 |
| Alverta Jones | Spouse | — | 44 | ~1896 |
| Robert Jones | Son | — | 10 | ~1930 |
| Ruby Jones | Daughter | — | 8 | ~1932 |
| Ruth Jones | Daughter | — | 15 | ~1925 |
| Lamartine Jones | Son | — | 5 | ~1935 |
| Lawrence Jones | Son | — | 14 | ~1926 |
| Grace Jones | Daughter | — | 17 | ~1923 |
| Alice Jones | Daughter | — | 11 | ~1929 |
| Mary Jones | Daughter | — | 12 | ~1928 |
| James Jones | Son | — | 6 | ~1934 |
Census Appearances
1930
Calvert, Maryland
Son, age 4
Calvert, Maryland · implied b. ~1926 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 4 |
| 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 14
Calvert-County, Maryland · implied b. ~1926 — 12 household members
| Surname | Jones |
| Given Name | Lawrence Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Calvert |
| Highest Grade | No 4 |
| 1935 Residence | Maryland |
| 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 Lawrence Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lawrence Jones
Son · 1940 · age 14 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Mary Jones
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lamartine Jones
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarice Jones
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Jones
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Jones
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Jones
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Jones
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Jones
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Jones
Sibling · 1940 · age 10
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-t0627-01543-00196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernice Goldman | 32 | Wife | Maid | Maryland |
| 2 | David Goldman | 78 | Father | — | Maryland |
| 3 | Lemuel Huppins | 30 | Head | Labour | Maryland |
| 4 | Annie Huppins | 28 | Wife | Maid | Maryland |
| 5 | Emery Wilburn | 74 | Head | Farmer | Maryland |
| 6 | Helena Wilburn | 53 | Wife | — | Maryland |
| 7 | Harry Klein | 42 | Head | Baker | New Jersey |
| 8 | Herbert C. Klein | 18 | Son | Labor | Maryland |
| 9 | Harry O. Klein | 14 | Son | — | Maryland |
| 10 | Emily M. Klein | 12 | Daughter | — | Maryland |
| 11 | Evelyn M. Klein | 12 | Daughter | — | Maryland |
| 12 | George W. Klein | 11 | Son | — | Maryland |
| 13 | Margaret T. Klein | 7 | Daughter | — | Maryland |
| 14 | Walter Ward | 40 | Head | Tenant | Maryland |
| 15 | Wilbert Ward | 19 | Son | Labour | Maryland |
| 16 | Buster Ward | 13 | Son | — | Maryland |
| 17 | Tubby Ward | 11 | Son | — | Maryland |
| 18 | Ben Ward | 9 | Son | — | Maryland |
| 19 | Forrester Ward | 48 | Lodger | Tenant | Maryland |
| 20 | Edward Gantt | 58 | Head | Manager | Maryland |
| 21 | Jane Gantt | 55 | Sister | Postmistress | Maryland |
| 22 | Lawrence Jones | 44 | Head | Tenant | Maryland |
| 23 | Alverta Jones | 44 | Wife | House Work | Maryland |
| 24 | Grace Jones | 17 | Daughter | House Maid | Maryland |
| 25 | Ruth Jones | 15 | Daughter | — | Maryland |
| 26 | Lawrence Jr. Jones THIS PERSON | 14 | Son | — | Maryland |
| 27 | Mary Jones | 12 | Daughter | — | Maryland |
| 28 | Alice Jones | 11 | Daughter | — | Maryland |
| 29 | Robert Jones | 10 | Son | — | Maryland |
| 30 | Ruby Jones | 8 | Daughter | — | Maryland |
| 31 | James Jones | 6 | Son | — | Maryland |
| 32 | Lamartine Jones | 5 | Son | — | Maryland |
| 33 | Clarice Jones | 2 | Daughter | — | Maryland |
| 34 | John Brown | 36 | Head | Tenant | Maryland |
| 35 | Harriet Johnson | 31 | Wife | — | Maryland |
| 36 | James Brown | 11 | Son | — | Maryland |
| 37 | Carroll Brown | 9 | Son | — | Maryland |
| 38 | Angeline Brown | 5 | Daughter | — | Maryland |
| 39 | Wilfred Brown | 4 | Son | — | Maryland |
| 40 | Randolph Brown | 2 | Son | — | Maryland |
Related Census Records
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)