MB
Mary Barker — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Harford, Maryland
Our Model Tree links this Mary Barker across the 1920 and 1930 US Censuses in Harford, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1907), then head of a 9-person household.
Age 23
b. ~1907
Female
Daughter
Born: Virginia
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Harford, Maryland |
| Surname | Barker |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Teacher |
| Township / Ward | Election District 2 |
| Est. Birth Year | ~1907 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Barker | Daughter | — | 17 | ~1913 |
| Myrtle Barker | Daughter | — | 10 | ~1920 |
| Mary Barker | Daughter | — | 23 | ~1907 |
| Bessie Barker | Daughter | — | 14 | ~1916 |
| John Barker | Head | — | 69 | ~1861 |
| Robert Barker | Son | — | 13 | ~1917 |
| Walter Barker | Son | — | 8 | ~1922 |
| Harry Barker | Son | — | 18 | ~1912 |
| Annie Barker | Spouse | — | 52 | ~1878 |
Census Appearances
1920
Harford, Maryland
Daughter, age 12
Harford, Maryland · implied b. ~1908 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barker |
| Given Name | Mary P |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Harford, Maryland
Daughter, age 23
Harford, Maryland · implied b. ~1907 — 9 household members
| Surname | Barker |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Barker across 2 US Census years (1920 and 1930) in Harford, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barker
Daughter · 1930 · age 23 · b. ~1907 · Maryland
★ You are viewing this record
Sibling
Myrtle Barker
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Barker
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Barker
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Barker
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Barker
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Barker
Sibling · 1930 · age 8
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 — Harford, Maryland
Open full size
1930 US Federal Census — Harford, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus875unit:0683)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ellen J. Sweeney | 47 | Lodger | House Maid | Ireland |
| 52 | James R. Smith | 52 | Head | General Work | Virginia |
| 53 | Elizabeth A. Smith | 47 | Wife | — | Virginia |
| 54 | James A. Smith | 20 | Son | Laborer | Virginia |
| 55 | Egbert L. Smith | 18 | Son | Laborer | Virginia |
| 56 | Laura Smith | 13 | Daughter | — | North Carolina |
| 57 | Gertrude L. Stewart | 8 | Step daughter | — | Virginia |
| 58 | Robert A. Knight | 22 | Lodger | Telephone Man | Maryland |
| 59 | Alfred J. Smith | 40 | Head | Chauffeur | England |
| 60 | Alice Smith | 38 | Wife | — | England |
| 61 | Winifred A. Smith | 12 | Daughter | — | England |
| 62 | Herbert H. Smith | 11 | Son | — | England |
| 63 | Dennis H. Smith | 9 | Son | — | England |
| 64 | Eileen M. Smith | 7 | Daughter | — | England |
| 65 | Sidney S. Smith | 5 | Son | — | England |
| 66 | John W. Barker | 69 | Head | Farmer | North Carolina |
| 67 | Annie L. Barker | 52 | Wife | — | Virginia |
| 68 | Mary H. Barker THIS PERSON | 23 | Daughter | Teacher | Virginia |
| 69 | Harry E. Barker | 18 | Son | Farmer | Virginia |
| 70 | Gertrude L. Barker | 17 | Daughter | Teacher | Virginia |
| 71 | Bessie G. Barker | 14 | Daughter | — | Maryland |
| 72 | Robert L. Barker | 13 | Son | — | Maryland |
| 73 | Myrtle I. Barker | 10 | Daughter | — | Maryland |
| 74 | Walter F. Barker | 8 | Son | — | Maryland |
| 75 | Sarah E. Holloway | 67 | Head | — | Maryland |
| 76 | John H. Hanley | 52 | Head | Farmer | Virginia |
| 77 | Grace D. Hanley | 32 | Wife | — | Nebraska |
| 78 | Eunice M. Hanley | 27 | Daughter | House Help | Virginia |
| 79 | Albert L. Hanley | 21 | Son | Laborer | Virginia |
| 80 | Vida E. Hanley | 12 | Daughter | — | Maryland |
| 81 | Dorothy R. Hanley | 2 | Daughter | — | Maryland |
| 82 | Winifred E. Gatchell | 24 | Boarder | Stenographer | Washington |
| 83 | Roxie M. Barker | 43 | Head | Farmer | North Carolina |
| 84 | Lucy Barker | 43 | Wife | — | Virginia |
| 85 | Myrna L. Barker | 20 | Daughter | — | Virginia |
| 86 | Wade H. Barker | 17 | Son | Laborer | Virginia |
| 87 | Virginia Barker | 11 | Daughter | — | Virginia |
| 88 | Mildred Barker | 8 | Daughter | — | Virginia |
| 89 | Paul Barker | 1 | Son | — | Maryland |
| 90 | Thomas G. Weaver | 52 | Head | Farmer | North Carolina |
| 91 | Myrtle L. Weaver | 34 | Wife | — | North Carolina |
| 92 | Irene M. Weaver | 12 | Daughter | — | Montana |
| 93 | Elmer M. Weaver | 10 | Daughter | — | Montana |
| 94 | Dorothy G. Weaver | 3 | Daughter | — | Maryland |
| 95 | George W. Gellman | 38 | Head | Dairyman | Maryland |
| 96 | Anna F. Gellman | 37 | Wife | — | Maryland |
| 97 | Anna E. Gellman | 2 | Daughter | — | Maryland |
| 98 | Earl W. Gellman | 0 | Son | — | Maryland |
| 99 | Mervin S. Berry | 10 | Step son | — | Maryland |
| 100 | Charles E. Berry | 14 | Step 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)