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Mary Gibbons — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Gibbons across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1912), then head of a 10-person household.
Age 18
b. ~1912
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Maid |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Maid |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1912 |
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 Gibbons | Daughter | — | 18 | ~1912 |
| Irene Gibbons | Daughter | — | 13 | ~1917 |
| George Gibbons | Son | — | 21 | ~1909 |
| Essie Gibbons | Other | — | 41 | ~1889 |
| Melvin Hennson | Other | — | 6 | ~1924 |
| Daniel Gibbons | Son | — | 6 | ~1924 |
| Daisy Hennson | Daughter | — | 23 | ~1907 |
| Rose Gibbons | Daughter | — | 16 | ~1914 |
| Arthur Hennson | Other | — | 33 | ~1897 |
| Clarence Gibbons | Head | — | 33 | ~1897 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 18
Baltimore, Maryland · implied b. ~1912 — 10 household members
| Surname | Gibbons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Occupation | Maid |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 26
Baltimore-City-County, Maryland · implied b. ~1914 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gibbon |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Housework |
| Industry | Private |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 520 |
| Highest Grade | No 6 |
| 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 Gibbons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Gibbons
Daughter · 1930 · age 18 · b. ~1912 · Maryland
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Sibling
George Gibbons
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Gibbons
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Gibbons
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daisy Hennson
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Gibbons
Sibling · 1930 · age 6
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
41 people indexed on this census page (ia:1930:15thcensus850unit:0635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ada Jackson | 46 | Head-H | Housework | Maryland |
| 52 | George Lee | 33 | Head | Laborer | Virginia |
| 53 | Mary Lee | 29 | Wife-H | Housework | Virginia |
| 54 | Annie Lee | 11 | Daughter | — | Maryland |
| 55 | Fred Spencer | 41 | Head | Laborer | Virginia |
| 56 | Mabel Spencer | 38 | Wife-H | — | Virginia |
| 57 | John Anthony | 42 | Boarder | Laborer | Virginia |
| 58 | Simon Hines | 60 | Head | Merchant-Retail | Austria |
| 59 | Jenny Hines | 57 | Wife-H | — | Austria |
| 60 | Manuel Hines | 32 | Son | Sales Clerk | Maryland |
| 61 | Catherine Hines | 29 | Daughter-in-law | — | Pennsylvania |
| 62 | Herbert D Hines | 3 | G-Son | — | Maryland |
| 63 | James Potts | 47 | Head | Laborer | Arkansas |
| 64 | Annie Wilson | 57 | Head-H | — | North Carolina |
| 65 | James Wilson | 18 | Son | — | Maryland |
| 66 | Hal Wilson | 42 | Boarder | Laborer | Virginia |
| 67 | Albert Wyatt | 24 | Boarder | Laborer | Wyoming |
| 68 | Leo Cook | 33 | Boarder | Laborer | North Carolina |
| 69 | Ben Blue | 42 | Head | Dishwasher | Virginia |
| 70 | Annie Blue | 30 | Wife-H | Maid | Virginia |
| 71 | Lillian Butts | 38 | Lodger | Maid | Virginia |
| 72 | Robert Lawrence | 44 | Head | Merchant-Retail | Maryland |
| 73 | Blossom Lawrence | 36 | Wife-H | — | Maryland |
| 74 | Florence Lawrence | 16 | Daughter | Maid | Maryland |
| 75 | Marguerite Lawrence | 15 | Daughter | — | Maryland |
| 76 | Robert Lawrence | 9 | Son | — | Maryland |
| 77 | Emil Lawrence | 8 | Son | — | Maryland |
| 78 | Everette Lawrence | 3 | Son | — | Maryland |
| 79 | Paul Lawrence | 1 | Son | — | Maryland |
| 80 | Clarence Gibbons | 33 | Head | Laborer | Virginia |
| 81 | Essie Gibbons | 41 | Wife-H | — | Maryland |
| 82 | Daisy Hennson | 23 | Daughter | — | Maryland |
| 83 | George Gibbons | 21 | Son | Laborer | Maryland |
| 84 | Mary Gibbons THIS PERSON | 18 | Daughter | Maid | Maryland |
| 85 | Rose Gibbons | 16 | Daughter | Maid | Maryland |
| 86 | Irene Gibbons | 13 | Daughter | — | Maryland |
| 87 | Daniel Gibbons | 6 | Son | — | Maryland |
| 88 | Arthur Hennson | 33 | Son-in-law | Laborer | Maryland |
| 89 | Melvin Hennson | 6 | G-Son | — | Maryland |
| 90 | Arthur Key | 49 | Head | Barber | Virginia |
| 91 | Elizabeth Key | 43 | Wife-H | — | 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)