JH
John Holland — 1940 US Census Record
Model Tree available1940 United States Federal Census · Anne-Arundel-County, Maryland
Our Model Tree links this John Holland across the 1920, 1930 and 1940 US Censuses in Anne-Arundel-County, Maryland (XGBoost, ~Confirmed), with identified parents J & Almira — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Anne-Arundel-County, Maryland |
| Surname | Holland |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Churchton |
| 1935 Residence (County) | Anne Arundel |
| Additional Details | |
| Occupation | Oyster tonger |
| Industry | Oystering |
| Class of Worker | OA |
| Hours Worked | 36 |
| Income (1939) | 100 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Oyster Tonger |
| Township / Ward | Churchton |
| Est. Birth Year | ~1919 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| J Holland | Head | — | 69 | ~1871 |
| John Holland | Son | — | 21 | ~1919 |
| Linwood Holland | Son | — | 25 | ~1915 |
| Mary Holland | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Anne Arundel, …
Son, age 1
Anne Arundel, Maryland · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holland |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Anne Arundel, …
Other, age 11
Anne Arundel, Maryland · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Holland |
| Given Name | John |
| Relationship to Head | Gr-Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Anne-Arundel-County, Maryland
Son, age 21
Anne-Arundel-County, Maryland · implied b. ~1919 — 4 household members
| Surname | Holland |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Churchton |
| 1935 Residence (County) | Anne Arundel |
| Occupation | Oyster tonger |
| Industry | Oystering |
| Class of Worker | OA |
| Hours Worked | 36 |
| Income (1939) | 100 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| 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 John Holland across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Holland (~0.92 confidence) and mother Almira Holland (~0.92 confidence) and father Charles Holland (~0.92 confidence) and mother Mary Holland (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Holland
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Almira Holland
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Charles Holland
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Mary Holland
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Holland
Son · 1940 · age 21 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Linwood Holland
Sibling · 1940 · age 25
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 — Anne-Arundel-County, Maryland
Open full size
1940 US Federal Census — Anne-Arundel-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01502-00708)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Black Gross | 60 | Head | Oyster Tonger | Maryland |
| 42 | Melvin Gross | 27 | Son | Oyster Tonger | Maryland |
| 43 | Earle Gross | 39 | Head | Oyster Tonger | Maryland |
| 44 | Ruth Gross | 33 | Wife | — | Maryland |
| 45 | Rodney Gross | 14 | Son | — | Maryland |
| 46 | Frank Gross | 11 | Son | — | Maryland |
| 47 | Earle Jr. Gross | 10 | Son | — | Maryland |
| 48 | Paul Gross | 9 | Son | — | Maryland |
| 49 | Roy Holland | 27 | Brother-in-law | Oyster Tonger | Maryland |
| 50 | Elizabeth Gross | 79 | Head | — | Maryland |
| 51 | Louis Gross | 30 | Grand-son | Oyster Tonger | Maryland |
| 52 | Howard Mathews | 29 | Grand-son | Oyster Tonger | Maryland |
| 53 | Bernice Mathews | 27 | Grand-daughter | — | Maryland |
| 54 | Florence Mathews | 8 | Daughter | — | Maryland |
| 55 | Oliver Mathews | 7 | Great-grand-son | — | Maryland |
| 56 | Robert Mathews | 5 | Great-grand-son | — | Maryland |
| 57 | Shirley Mathews | 3 | Great-grand-daughter | — | Maryland |
| 58 | Ralph Mathews | 1 | Great-grand-son | — | Maryland |
| 59 | J. Albert Holland | 69 | Head | Oyster Tonger | Maryland |
| 60 | Mary Ella Holland | 58 | Wife | — | Maryland |
| 61 | Linwood Holland | 25 | Son | Oyster Tonger | Maryland |
| 62 | John Holland THIS PERSON | 21 | Son | Oyster Tonger | Maryland |
| 63 | Henry Nick | 23 | Head | Truck Driver | Maryland |
| 64 | Esther Nick | 20 | Wife | — | Maryland |
| 65 | Henry Jr. Nick | 0 | Son | — | Maryland |
| 66 | Elmather Nick | 24 | Brother | Gardner | Maryland |
| 67 | Nettie Nick | 21 | Sister-in-law | — | Maryland |
| 68 | Melvin Lee Nick | 3 | Nephew | — | Maryland |
| 69 | Benjamin Brown | 60 | Head | Oyster Tonger | Maryland |
| 70 | Theresa Brown | 56 | Wife | — | Maryland |
| 71 | Leon Brown | 14 | Son | — | Maryland |
| 72 | Ruth M. Brown | 13 | Daughter | — | Maryland |
| 73 | James Holland | 30 | Head | Oyster Tonger | Maryland |
| 74 | Hilda Holland | 24 | Wife | — | Maryland |
| 75 | James E. Holland | 10 | Son | — | Maryland |
| 76 | Emma E. Holland | 5 | Daughter | — | Maryland |
| 77 | B. Gertrude Holland | 3 | Daughter | — | Maryland |
| 78 | Melvin L. Holland | 1 | Son | — | Maryland |
| 79 | Vincent Brown | 25 | Head | Oyster Tonger | Maryland |
| 80 | Katherine Brown | 20 | Wife | — | Maryland |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)