HP
Harold Parker — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Harold Parker across the 1920, 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1910), then head of a 11-person household.
Age 30
b. ~1910
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Parker |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1, Solomons Island |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 266 |
| Highest Grade | No 5 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 1 Solomons Island |
| Est. Birth Year | ~1910 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Cecil Parker | Son | — | 24 | ~1916 |
| Harold Parker | Son | — | 30 | ~1910 |
| Sadie Parker | Daughter | — | 19 | ~1921 |
| Bernice Parker | Other | — | 3 | ~1937 |
| Haywood Parker | Son | — | 18 | ~1922 |
| Woodrow Parker | Son | — | 19 | ~1921 |
| Harrison Parker | Other | — | 54 | ~1886 |
| Laura Parker | Daughter | — | 15 | ~1925 |
| Donald Parker | Son | — | 28 | ~1912 |
| Ida Parker | Spouse | — | 56 | ~1884 |
| James Parker | Head | — | 56 | ~1884 |
Census Appearances
1920
Calvert, Maryland
Son, age 9
Calvert, Maryland · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | Howard A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Calvert, Maryland
Son, age 19
Calvert, Maryland · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parker |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Labor |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Calvert-County, Maryland
Son, age 30
Calvert-County, Maryland · implied b. ~1910 — 11 household members
| Surname | Parker |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1, Solomons Island |
| 1935 Residence (County) | Calvert |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 266 |
| Highest Grade | No 5 |
| 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 Harold Parker across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Parker (~0.92 confidence) and father James Parker (~0.92 confidence) and mother Ida Parker (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Parker
b. ~1865
Source father
● Household
· direct · ~0.92
Father
James Parker
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ida Parker
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Parker
Son · 1940 · age 30 · b. ~1910 · Maryland
★ You are viewing this record
Sibling
Sadie Parker
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Woodrow Parker
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Parker
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Parker
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecil Parker
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Haywood Parker
Sibling · 1940 · age 18
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-t0627-01543-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James E. Parker | 56 | Head | Farmer | Maryland |
| 2 | Ida Parker | 56 | Wife | — | Maryland |
| 3 | Harold Parker THIS PERSON | 30 | Son | Laborer | Maryland |
| 4 | Donald Parker | 28 | Son | Laborer | Maryland |
| 5 | Cecil Parker | 24 | Son | Laborer | Maryland |
| 6 | Woodrow Parker | 19 | Son | Laborer | Maryland |
| 7 | Haywood Parker | 18 | Son | Laborer | Maryland |
| 8 | Laura F. Parker | 15 | Daughter | — | Maryland |
| 9 | Harrison Parker | 54 | Brother | Laborer | Maryland |
| 10 | Sadie Parker | 19 | Daughter | — | Maryland |
| 11 | Bernice Parker | 3 | Granddaughter | — | Maryland |
| 12 | Joseph Ragan | 60 | Head | Farmer | Maryland |
| 13 | Ella Ragan | 49 | Wife | — | Maryland |
| 14 | Elmer Pitcher | 50 | Head | Farmer | Maryland |
| 15 | Isabel Pitcher | 47 | Wife | — | Maryland |
| 16 | Marie Pitcher | 24 | Daughter | — | Maryland |
| 17 | Mary M. Pitcher | 15 | Daughter | — | Maryland |
| 18 | Elmer Jr. Pitcher | 14 | Son | — | Maryland |
| 19 | Violet Pitcher | 11 | Daughter | — | Maryland |
| 20 | Charles Pitcher | 9 | Son | — | Maryland |
| 21 | Catherine Pitcher | 7 | Daughter | — | Maryland |
| 22 | Jamison Pitcher | 5 | Son | — | Maryland |
| 23 | James Dorsey | 51 | Head | Farmer | Maryland |
| 24 | Molly Dorsey | 45 | Wife | — | Maryland |
| 25 | Clinton Dorsey | 19 | Son | Laborer | Maryland |
| 26 | William Dorsey | 17 | Son | Laborer | Maryland |
| 27 | Mattie Dorsey | 14 | Daughter | — | Maryland |
| 28 | Lawrence Pardoe | 48 | Head | Farmer | Maryland |
| 29 | Anna Pardoe | 51 | Wife | — | Maryland |
| 30 | Catherine Pardoe | 22 | Daughter | Teacher | Maryland |
| 31 | Roland Pardoe | 18 | Son | — | Maryland |
| 32 | Lawrence Pardoe | 10 | Son | — | Maryland |
| 33 | Wilson Hall | 55 | Head | Farmer | Maryland |
| 34 | Lucy S. Hall | 54 | Wife | — | Maryland |
| 35 | Leland L. Hall | 27 | Daughter | Teacher | Maryland |
| 36 | W. Woodrow Hall | 25 | Son | — | Maryland |
| 37 | Charles Fleming | 49 | Head | Laborer | Virginia |
| 38 | Thomas Hasseman | 59 | Head | Foreman | Maryland |
| 39 | Martha Hasseman | 50 | Wife | — | Maryland |
| 40 | Michael Lockerman | 65 | Head | Waterman | Maryland |
Related Census Records
Pedigree Summary
Harold + 6 siblings
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)