MB
Mary Ballard — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Fairfax, Virginia
Our Model Tree links this Mary Ballard across the 1920 and 1930 US Censuses in Fairfax, Virginia (XGBoost, ~Confirmed) — first a daughter (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Female
Daughter
Born: Kentucky
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Fairfax, Virginia |
| Surname | Ballard |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Providence District Part Of |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Thomas Ballard | Head | — | 41 | ~1889 |
| Bernard Ballard | Son | — | 3 | ~1927 |
| Joseph Ballard | Son | — | 14 | ~1916 |
| Paul Ballard | Son | — | 8 | ~1922 |
| Thomas Ballard | Son | — | 16 | ~1914 |
| Mary Ballard | Daughter | — | 17 | ~1913 |
| John Ballard | Son | — | 7 | ~1923 |
| James Ballard | Son | — | 13 | ~1917 |
| Richard Ballard | Son | — | 5 | ~1925 |
| Mary Ballard | Other | — | 40 | ~1890 |
Census Appearances
1920
Fairfax, Virginia
Daughter, age 8
Fairfax, Virginia · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ballard |
| Given Name | Mary G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Fairfax, Virginia
Daughter, age 17
Fairfax, Virginia · implied b. ~1913 — 10 household members
| Surname | Ballard |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Ballard across 2 US Census years (1920 and 1930) in Fairfax, Virginia, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ballard
Daughter · 1930 · age 17 · b. ~1913 · Virginia
★ You are viewing this record
Sibling
Thomas Ballard
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Ballard
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Ballard
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Ballard
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Ballard
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Ballard
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Ballard
Sibling · 1930 · age 13
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 — Fairfax, Virginia
Open full size
1930 US Federal Census — Fairfax, Virginia
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2442unit:0906)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert H. Thornton | 25 | Son | — | Virginia |
| 52 | Charles E. Thornton | 22 | Son | — | Maryland |
| 53 | Annie Thornton | 40 | Boarder | Laborer | Virginia |
| 54 | Addie Walker | 48 | Head-H | Servant | Virginia |
| 55 | Elizabeth B. Walker | 18 | Daughter | Servant | Virginia |
| 56 | Lawrence M. Walker | 16 | Daughter | Servant | District of Columbia |
| 57 | Dorothy L. Walker | 10 | Daughter | — | Virginia |
| 58 | John T. Walker | 7 | Son | — | Virginia |
| 59 | Lucille E. Walker | 0 | Daughter | — | Virginia |
| 60 | George Haskins | 74 | Head | Laborer | Virginia |
| 61 | Lilly Haskins | 22 | Wife-H | Laborer | Virginia |
| 62 | Barbara Haskins | 88 | Mother | — | Virginia |
| 63 | Robert A. Shaw | 60 | Head | Farmer | Maryland |
| 64 | Annie O. Shaw | 58 | Wife-H | — | South Carolina |
| 65 | Hugh P. Mccann | 48 | Head | Steam Fitter | District of Columbia |
| 66 | Marguerite R. Mccann | 35 | Wife-H | — | District of Columbia |
| 67 | Nelson H. Mccann | 16 | Son | — | District of Columbia |
| 68 | Kathryn M. Mccann | 14 | Daughter | — | Maryland |
| 69 | Gordon Mccann | 8 | Son | — | District of Columbia |
| 70 | Eli S. Stedman | 72 | Head | Skilled Laborer | Virginia |
| 71 | Ada J. Stedman | 48 | Wife-H | — | Virginia |
| 72 | Howard Stedman | 24 | Head | Tile Setter | Virginia |
| 73 | Velva Stedman | 24 | Wife-H | — | Virginia |
| 74 | John W. Throck | 43 | Head | Carpenter | Virginia |
| 75 | Virginia Throck | 38 | Wife-H | — | Virginia |
| 76 | Howard E. Pritt | 54 | Head | Filing Clerk | Indiana |
| 77 | Maud L. Pritt | 56 | Wife-H | — | Virginia |
| 78 | Arthur Holiday | 60 | Head | Repair Man | Virginia |
| 79 | Molly Holiday | 55 | Wife-H | — | Virginia |
| 80 | Edward Holiday | 23 | Son | Repair Man | Virginia |
| 81 | Pearl Holiday | 24 | Daughter-in-law | — | Virginia |
| 82 | Dorothy J. Holiday | 2 | Gr. Daughter | — | Virginia |
| 83 | Edward W. Jr. Holiday | 1 | Gr. Son | — | Virginia |
| 84 | Thomas H. Ballard | 41 | Head | Stat. Clerk | Kentucky |
| 85 | Mary L. Ballard | 40 | Wife-H | — | Kentucky |
| 86 | Mary L. Ballard THIS PERSON | 17 | Daughter | — | Kentucky |
| 87 | Thomas L. Ballard | 16 | Son | — | Kentucky |
| 88 | Joseph R. Ballard | 14 | Son | — | Kentucky |
| 89 | James H. Ballard | 13 | Son | — | Kentucky |
| 90 | Paul V. Ballard | 8 | Son | — | Virginia |
| 91 | John T. Ballard | 7 | Son | — | Virginia |
| 92 | Richard E. Ballard | 5 | Son | — | Virginia |
| 93 | Bernard R. Ballard | 3 | Son | — | Virginia |
| 94 | Charles Collins | 39 | Head | Farm Laborer | Virginia |
| 95 | Lydia Collins | 30 | Sister-H | — | Virginia |
| 96 | Susan Collins | 45 | Sister | Servant | Virginia |
| 97 | Preston Jordan | 33 | Head | Brakeman | Virginia |
| 98 | Charlotte F. Jordan | 33 | Wife-H | — | Virginia |
| 99 | Joseph N. Jordan | 1 | Son | — | Virginia |
| 100 | Israel Kauffman | 32 | Head | Mail Clerk | Russia |
Related Census Records
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)