JP
John Powell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this John Powell across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents Myrtle & William — first a son (b.~1915), then head of a 7-person household.
Age 25
b. ~1915
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Powell |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Truck driver |
| Industry | Own truck |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 420 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Truck Driver |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1915 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Carolyn Powell | Daughter | — | 15 | ~1925 |
| Ruth Powell | Daughter | — | 16 | ~1924 |
| William Powell | Head | — | 52 | ~1888 |
| Florence Long | Other | — | 80 | ~1860 |
| John Powell | Son | — | 25 | ~1915 |
| Chas Powell | Son | — | 19 | ~1921 |
| Myrtle Powell | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Frederick, Maryland
Son, age 5
Frederick, Maryland · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | John J |
| 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
Frederick, Maryland
Son, age 15
Frederick, Maryland · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Frederick-County, Maryland
Son, age 25
Frederick-County, Maryland · implied b. ~1915 — 7 household members
| Surname | Powell |
| Given Name | John S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Occupation | Truck driver |
| Industry | Own truck |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 420 |
| Highest Grade | H 4 |
| 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 Powell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Myrtle Powell (~0.92 confidence) and father William Powell (~0.92 confidence) and father William Powell (~0.92 confidence) and father William Powell (~0.92 confidence) and mother Myrtle Powell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Myrtle Powell
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
William Powell
b. ~1888
Source father
● Household
· direct · ~0.92
Father
William Powell
b. ~1888
Source father
● Household
· direct · ~0.92
Father
William Powell
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Myrtle Powell
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Powell
Son · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Ruth Powell
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Powell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chas Powell
Sibling · 1940 · age 19
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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martin E. Ritchie | 50 | Head | Salesman | Maryland |
| 42 | Elva Ritchie | 45 | Wife | — | Maryland |
| 43 | Charles Ritchie | 21 | Son | Salesman | Maryland |
| 44 | Harry Butler | 55 | Head | Laborer | Maryland |
| 45 | Alice Butler | 65 | Wife | — | Maryland |
| 46 | Horace Mitchel | 53 | Head | Salesman | Maryland |
| 47 | Horace Jr. Mitchel | 15 | Son | — | Maryland |
| 48 | Catherine Lightner | 46 | Housekeeper | Seamstress | Maryland |
| 49 | James Lightner | 16 | Son | Chauffeur | Maryland |
| 50 | Mary Lou Lightner | 15 | Daughter | — | Maryland |
| 51 | Roy Sundrigill | 25 | Head | Sub. Clerk | Maryland |
| 52 | Nellie Sundrigill | 62 | Mother | Inspector | Maryland |
| 53 | Harmon Refauver | 51 | Head | Truck Driver | Maryland |
| 54 | Lillian Refauver | 29 | Wife | — | Maryland |
| 55 | Albert Legaloft | 37 | Head | Merchant | Maryland |
| 56 | Sarah Legaloft | 37 | Wife | — | Maryland |
| 57 | Louis Legaloft | 13 | Son | — | Maryland |
| 58 | Bernice Legaloft | 9 | Daughter | — | Maryland |
| 59 | Jacob Legaloft | 1 | Son | — | Maryland |
| 60 | Clife Krotes | 38 | Head | Salesman | Maryland |
| 61 | Beatrice Krotes | 33 | Wife | — | Maryland |
| 62 | Donald Krotes | 11 | Son | — | Maryland |
| 63 | George Simonto | 44 | Head | Operator | Epirus |
| 64 | Elizabeth Simonto | 46 | Wife | — | Maryland |
| 65 | Monroe H. Kemp | 64 | Head | — | Maryland |
| 66 | Marcell R. Kemp | 57 | Wife | — | Maryland |
| 67 | David M. Kemp | 33 | Son | Teller | Maryland |
| 68 | William C. Powell | 52 | Head | Sand Cleaning | Maryland |
| 69 | Myrtle G. Powell | 58 | Wife | — | Maryland |
| 70 | John S. Powell THIS PERSON | 25 | Son | Truck Driver | Maryland |
| 71 | Chas. W. Powell | 19 | Son | Groc. Clerk | Maryland |
| 72 | Ruth B. Powell | 16 | Daughter | — | Maryland |
| 73 | Carolyn I. Powell | 15 | Daughter | — | Maryland |
| 74 | Florence Long | 80 | Aunt | — | Maryland |
| 75 | Herman Bowers | 49 | Head | Lawyer | Maryland |
| 76 | Lillian Bowers | 41 | Wife | — | Maryland |
| 77 | Nancy Bowers | 13 | Daughter | — | Maryland |
| 78 | Alice Bowers | 7 | Daughter | — | Maryland |
| 79 | James Moberly | 28 | Head | Accountant | Maryland |
| 80 | Helen Moberly | 25 | Wife | Bookkeeper | Maryland |
Pedigree Summary
John + 3 siblings
Gen 1 · 5 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)