HC
Harry Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegany-County, Maryland
Our Model Tree links this Harry Clark across the 1920, 1930 and 1940 US Censuses in Allegany-County, Maryland (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1914), then head of a 9-person household.
Age 26
b. ~1914
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegany-County, Maryland |
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frostburg |
| 1935 Residence (County) | Allegany |
| Additional Details | |
| Occupation | Spinner |
| Industry | Silk Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 492 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Spinner |
| Township / Ward | Frostburg |
| Est. Birth Year | ~1914 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Orpha Clark | Daughter | — | 30 | ~1910 |
| Leona Shields | Daughter | — | 32 | ~1908 |
| James Clark | Head | — | 63 | ~1877 |
| Ellen Cassgrove | Other | — | 84 | ~1856 |
| Charles Clark | Other | — | 60 | ~1880 |
| Harry Clark | Son | — | 26 | ~1914 |
| James Clark | Son | — | 38 | ~1902 |
| Charles Clark | Son | — | 31 | ~1909 |
| Mary Clark | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Allegany, Maryland
Son, age 5
Allegany, Maryland · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Allegany, Maryland
Son, age 16
Allegany, Maryland · implied b. ~1914 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Allegany-County, Maryland
Son, age 26
Allegany-County, Maryland · implied b. ~1914 — 9 household members
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frostburg |
| 1935 Residence (County) | Allegany |
| Occupation | Spinner |
| Industry | Silk Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 492 |
| Highest Grade | No 8 |
| 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 Harry Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Clark (~0.92 confidence) and father James Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence) and mother Mary Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Father
James Clark
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mary Clark
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Clark
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Clark
Son · 1940 · age 26 · b. ~1914 · Maryland
★ You are viewing this record
Sibling
James Clark
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Clark
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Orpha Clark
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Shields
Sibling · 1940 · age 32
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 — Allegany-County, Maryland
Open full size
1940 US Federal Census — Allegany-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01500-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Yvonne Goodrich | 2 | Daughter | — | Maryland |
| 2 | Maxine Goodrich | 0 | Daughter | — | Maryland |
| 3 | Charles T. Rice | 41 | Head | Machinist | Virginia |
| 4 | Daisy V. Rice | 28 | Wife | — | Maryland |
| 5 | Sarah J. Rice | 9 | Daughter | — | Maryland |
| 6 | Regis X. Bunker | 28 | Head | Sheet Metal Helper | Maryland |
| 7 | Mary E. Bunker | 28 | Wife | — | Maryland |
| 8 | Robert Bunker | 1 | Son | — | Maryland |
| 9 | Elizabeth Odgers | 45 | Head | Clipper | Maryland |
| 10 | Stella Odgers | 55 | Head | Silk Weaver | Maryland |
| 11 | Edward Drum | 53 | Head | Carpenter | Maryland |
| 12 | Bessie Drum | 51 | Wife | — | Maryland |
| 13 | John E. Drum | 25 | Son | Shipping Clerk | Maryland |
| 14 | Elizabeth V. Drum | 19 | Daughter | New Worker | Maryland |
| 15 | Frederick Drum | 16 | Son | Water Boy | Maryland |
| 16 | Lawrence S. Drum | 8 | Son | — | Maryland |
| 17 | Joseph G. Smith | 55 | Head | Miner | W. Virginia |
| 18 | Margaret Smith | 64 | Wife | — | Pennsylvania |
| 19 | Helen M. Pratt | 20 | Daughter | — | Maryland |
| 20 | Francis J. Pratt | 1 | Nephew | — | Maryland |
| 21 | Ralph Pratt | 23 | Son-in-law | Twister | Pennsylvania |
| 22 | Baby Boy Pratt | None | Son | — | Maryland |
| 23 | Samuel Mcculloh | 56 | Head | Salesman | Maryland |
| 24 | Gladys Mcculloh | 38 | Wife | — | Maryland |
| 25 | Gladys B. Mcculloh | 10 | Daughter | — | Maryland |
| 26 | Mary J. Mcculloh | 8 | Daughter | — | Maryland |
| 27 | Helen M. Mcculloh | 7 | Daughter | — | Maryland |
| 28 | Samuel Mcculloh | 4 | Son | — | Maryland |
| 29 | James H. Clark | 63 | Head | Janitor | Maryland |
| 30 | Mary E. Clark | 62 | Wife | — | Maryland |
| 31 | James Clark | 38 | Son | Laborer | Maryland |
| 32 | Charles Clark | 31 | Son | Salesman | Maryland |
| 33 | Orpha A. Clark | 30 | Daughter | Teacher | Maryland |
| 34 | Harry Clark THIS PERSON | 26 | Son | Spinner | Maryland |
| 35 | Leona Shields | 32 | Daughter | Teacher | Maryland |
| 36 | Ellen Cassgrove | 84 | Mother-in-law | — | Maryland |
| 37 | Charles Clark | 60 | Brother | Street Work | Maryland |
| 38 | — | None | — | — | — |
| 39 | Earl H. Braix | 37 | Head | Principal | Maryland |
| 40 | Jane Q. Braix | 38 | Wife | — | Maryland |
Related Census Records
Pedigree Summary
Harry + 4 siblings
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)