MP
Mary Powell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Maryland
Our Model Tree links this Mary Powell across the 1930 and 1940 US Censuses in Washington, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 10-person household.
Age 12
b. ~1918
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Maryland |
| Surname | Powell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Hagerstown |
| Est. Birth Year | ~1918 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Powell | Daughter | — | 12 | ~1918 |
| Margaret Powell | Daughter | — | 15 | ~1915 |
| Helen Powell | Daughter | — | 10 | ~1920 |
| Elizabeth Powell | Daughter | — | 14 | ~1916 |
| Evaline Powell | Daughter | — | 8 | ~1922 |
| William Powell | Head | — | 39 | ~1891 |
| Robert Powell | Son | — | 1 | ~1929 |
| Allen Powell | Son | — | 4 | ~1926 |
| Clarence Powell | Son | — | 5 | ~1925 |
| Olive Powell | Spouse | — | 37 | ~1893 |
Census Appearances
1930
Washington, Maryland
Daughter, age 12
Washington, Maryland · implied b. ~1918 — 10 household members
| Surname | Powell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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
Washington-County, Maryland
Spouse, age 23
Washington-County, Maryland · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Powell |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Hagerstown |
| 1935 Residence (County) | Washington |
| Occupation | Assorter |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Mary Powell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Powell
Daughter · 1930 · age 12 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Robert Powell
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Powell
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Powell
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Powell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Powell
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evaline Powell
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Powell
Sibling · 1930 · age 15
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
1930 US Federal Census — Washington, Maryland
Open full size
1930 US Federal Census — Washington, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus881unit:0802)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Johnston | 24 | Wife | — | Pennsylvania |
| 52 | Richard Robinson | 35 | Servant | Servant | Maryland |
| 53 | Mary Robinson | 35 | Servant | Servant | Virginia |
| 54 | James Houser | 55 | Head | Laborer | Maryland |
| 55 | Mary Houser | 51 | Wife | — | Maryland |
| 56 | Elizabeth Houser | 22 | Son | Cutter | Maryland |
| 57 | Lester Keyes | 39 | Head | Laborer | Maryland |
| 58 | Anna B. Keyes | 34 | Wife | — | Maryland |
| 59 | Elsie Keyes | 15 | Daughter | — | Maryland |
| 60 | Daniel Spessard | 72 | Head | Farmer | Maryland |
| 61 | Emma Spessard | 71 | Wife | — | Maryland |
| 62 | Edna Doubt | 40 | Daughter | Saleslady | Maryland |
| 63 | Thelma Doubt | 22 | Grand Daughter | Bookkeeper | Maryland |
| 64 | William Doubt | 18 | Grand Son | — | Maryland |
| 65 | Gerald Doubt | 14 | Grand Son | — | Maryland |
| 66 | Robert Doubt | 10 | Grand Son | — | Maryland |
| 67 | Phyllis Doubt | 8 | Grand Daughter | — | Maryland |
| 68 | James Malotte | 63 | Head | Farmer | Maryland |
| 69 | Elmer Stottlemyer | 53 | Head | Farmer | Maryland |
| 70 | Minerva Stottlemyer | 45 | Wife | — | Maryland |
| 71 | Ora Stottlemyer | 27 | Public School | Teacher | Maryland |
| 72 | Erman Stottlemyer | 26 | Shoe Factory | Bookkeeper | Maryland |
| 73 | Irene Stottlemyer | 21 | General Farm | Stenographer | Maryland |
| 74 | George Stottlemyer | 20 | General Farm | Laborer | Maryland |
| 75 | Harold Stottlemyer | 17 | Son | — | Maryland |
| 76 | Myrtle Stottlemyer | 14 | Daughter | — | Maryland |
| 77 | Richard Kirshner | 36 | Head | Carpenter | Maryland |
| 78 | Ora Kirshner | 36 | Wife | Cutter | Maryland |
| 79 | Edward Durrer | 41 | Head | Baker | Maryland |
| 80 | Minnie Durrer | 40 | Wife | — | Maryland |
| 81 | Margaret Durrer | 19 | Daughter | Stenographer | Maryland |
| 82 | Frances Durrer | 18 | Daughter | Stenographer | Maryland |
| 83 | Helen Durrer | 14 | Daughter | — | Maryland |
| 84 | Frederick Plummer | 75 | Head | — | Maryland |
| 85 | Annie Plummer | 65 | Wife | — | Maryland |
| 86 | Charles Plummer | 44 | Son | Organ Builder | Maryland |
| 87 | Annie Plummer | 42 | Daughter | Seamstress | Maryland |
| 88 | Edward Plummer | 40 | Head | Organ Builder | Maryland |
| 89 | Katherine Plummer | 39 | Wife | — | Maryland |
| 90 | Janette Plummer | 11 | Daughter | — | Maryland |
| 91 | William Powell | 39 | Head | Plumber | Maryland |
| 92 | Olive Powell | 37 | Wife | — | Maryland |
| 93 | Margaret Powell | 15 | Daughter | — | Maryland |
| 94 | Elizabeth Powell | 14 | Daughter | — | Maryland |
| 95 | Mary Powell THIS PERSON | 12 | Daughter | — | Maryland |
| 96 | Helen Powell | 10 | Daughter | — | Maryland |
| 97 | Evaline Powell | 8 | Daughter | — | Maryland |
| 98 | Clarence Powell | 5 | Son | — | Maryland |
| 99 | Allen Powell | 4 | Son | — | Maryland |
| 100 | Robert Powell | 1 | Son | — | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)