JH
John Hopkins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harford-County, Maryland
Our Model Tree links this John Hopkins across the 1920, 1930 and 1940 US Censuses in Harford-County, Maryland (XGBoost, ~Confirmed), with identified parents John & Laura — first a head (b.~1898), then head of a 4-person household.
Age 42
b. ~1898
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harford-County, Maryland |
| Surname | Hopkins |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 5 |
| Additional Details | |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | E |
| Hours Worked | 80 |
| Income (1939) | 75 |
| Highest Grade | Hs 4 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Election District 5 |
| Est. Birth Year | ~1898 |
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 |
|---|---|---|---|---|
| Ann Hopkins | Daughter | — | 2 | ~1938 |
| John Hopkins | Head | — | 42 | ~1898 |
| John Hopkins | Son | — | 7 | ~1933 |
| Margaret Hopkins | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Harford, Maryland
Son, age 22
Harford, Maryland · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Servant |
| Industry | Private family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Harford, Maryland
Head, age 32
Harford, Maryland · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hopkins |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 30 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Harford-County, Maryland
Head, age 42
Harford-County, Maryland · implied b. ~1898 — 4 household members
| Surname | Hopkins |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 5 |
| Occupation | Farmer |
| Industry | Own Farm |
| Class of Worker | E |
| Hours Worked | 80 |
| Income (1939) | 75 |
| Highest Grade | Hs 4 |
| 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 Hopkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hopkins (~0.92 confidence) and mother Laura Hopkins (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hopkins
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Laura Hopkins
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hopkins
Head · 1940 · age 42 · b. ~1898 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harford-County, Maryland
Open full size
1940 US Federal Census — Harford-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01551-00801)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clive Hendrix | 9 | Son | — | N. Carolina |
| 42 | Maxine Hendrix | 6 | Daughter | — | N. Carolina |
| 43 | Junior Hendrix | 3 | Son | — | N. Carolina |
| 44 | Harold Barrett | 25 | Head | Farm Hand | Maryland |
| 45 | Lillian Barrett | 24 | Wife | — | Virginia |
| 46 | Richard Barrett | 1 | Son | — | Maryland |
| 47 | Ida Conner | 61 | Mother-in-law | — | Virginia |
| 48 | James Dixon | 19 | Hired Boy | Farm Hand | Maryland |
| 49 | Mary E. Hopkins | 40 | Head | Social Worker | Maryland |
| 50 | Jane E. Hopkins | 84 | Mother | — | Maryland |
| 51 | John W. Hopkins THIS PERSON | 42 | Head | Farmer | Maryland |
| 52 | Margaret Hopkins | 34 | Wife | — | Maryland |
| 53 | John W. Jr. Hopkins | 7 | Son | — | Maryland |
| 54 | Ann Hopkins | 2 | Daughter | — | Maryland |
| 55 | John W. Hopkins | 66 | Head | Farmer | Maryland |
| 56 | Anna Hopkins | 61 | Sister | — | Maryland |
| 57 | Grace Hopkins | 55 | Sister | — | Maryland |
| 58 | Benjamin Mccloud | 51 | Head | Farm Hand | Virginia |
| 59 | Florence Mccloud | 40 | Wife | — | Virginia |
| 60 | Oscar Mccloud | 19 | Son | Farm Hand | Virginia |
| 61 | John C. Murphy | 46 | Head | Farmer | Maryland |
| 62 | Pearl Murphy | 48 | Wife | — | Maryland |
| 63 | John Jr. Murphy | 26 | Son | Farm Hand | Maryland |
| 64 | Mary V. Murphy | 17 | Daughter | — | Maryland |
| 65 | Jessie V. Murphy | 14 | Daughter | — | Maryland |
| 66 | Mary V. Day | 73 | Mother-in-law | — | Maryland |
| 67 | Henderson C. Edwards | 65 | Head | Farmer | N. Carolina |
| 68 | Agnes Edwards | 52 | Wife | — | N. Carolina |
| 69 | Urza Wyatt | 25 | Hired Man | Farm Hand | N. Carolina |
| 70 | James Barber | 32 | Head | Farm Hand | Virginia |
| 71 | Ruth Barber | 27 | Wife | — | Virginia |
| 72 | Jack Barber | 9 | Son | — | Virginia |
| 73 | Walter Puckett | 41 | Head | Farmer | Virginia |
| 74 | Zita Puckett | 35 | Wife | — | N. Carolina |
| 75 | Ralph Puckett | 6 | Son | — | Maryland |
| 76 | Margaret Puckett | 62 | Mother | — | Virginia |
| 77 | Olis Miller | 22 | Hired Man | Farm Hand | Virginia |
| 78 | Thomas Puckett | 75 | Father | — | Virginia |
| 79 | Russell Puckett | 26 | Head | Electrician | Virginia |
| 80 | Muriel Puckett | 21 | Wife | — | Oklahoma |
Pedigree Summary
John
Gen 1 · 2 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)