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Frank Griffin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Frank Griffin across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a son (b.~1908), then head of a 10-person household.
Age 22
b. ~1908
Male
Son
Born: Virginia
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Griffin |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Occupation | Laborer |
| Industry | Public Work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Laborer |
| Est. Birth Year | ~1908 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| Emily Thomas | Daughter | — | 18 | ~1912 |
| Richard Griffin | Head | — | 51 | ~1879 |
| Nancy Griffin | Other | — | 49 | ~1881 |
| Flora Bressit | Daughter | — | 30 | ~1900 |
| James Thomas | Other | — | 6 | ~1924 |
| Charles Thomas | Other | — | 4 | ~1926 |
| Victoria Thomas | Daughter | — | 24 | ~1906 |
| James Griffin | Son | — | 20 | ~1910 |
| Frank Griffin | Son | — | 22 | ~1908 |
| Emily Griffin | Daughter | — | 11 | ~1919 |
Census Appearances
1930
Baltimore, Maryland
Son, age 22
Baltimore, Maryland · implied b. ~1908 — 10 household members
| Surname | Griffin |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Laborer |
| Industry | Public Work |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Baltimore-City-County, Maryland
Other, age 31
Baltimore-City-County, Maryland · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Francis |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Separated |
| Birthplace | Virginia |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Insurance Agent |
| Industry | Insurance Company |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 624 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| 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 Frank Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Griffin
Son · 1930 · age 22 · b. ~1908 · Maryland
★ You are viewing this record
Sibling
Emily Thomas
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Griffin
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Griffin
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Bressit
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victoria Thomas
Sibling · 1930 · age 24
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
50 people indexed on this census page (ia:1930:15thcensus850unit:0453)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Griffin | 51 | Head | Laborer | Virginia |
| 2 | Nancy Griffin | 49 | Wife-H | — | Virginia |
| 3 | Frank Griffin THIS PERSON | 22 | Son | Laborer | Virginia |
| 4 | James Griffin | 20 | Son | Laborer | Virginia |
| 5 | Emily Griffin | 11 | Daughter | — | Maryland |
| 6 | James Thomas | 6 | Grandson | — | Maryland |
| 7 | Charles Thomas | 4 | Grandson | — | Maryland |
| 8 | Victoria Thomas | 24 | Daughter | Laundress | Virginia |
| 9 | Emily Thomas | 18 | Daughter | Presser | Virginia |
| 10 | Flora Bressit | 30 | Daughter | Laundress | Virginia |
| 11 | James Stewart | 61 | Head | Laborer | Maryland |
| 12 | Mary Stewart | 45 | Wife-H | Laundress | Maryland |
| 13 | Noah Hess | 49 | Lodger | Laborer | Maryland |
| 14 | Lodger Annie | 49 | Lodger | Cook | Maryland |
| 15 | Ella Allen | 61 | Sister-in-law | — | Maryland |
| 16 | Charles Instans | 55 | Head | Laborer | Maryland |
| 17 | Rosie Matthews | 30 | Sister | Servant | Maryland |
| 18 | Carter Brittington | 30 | Lodger | Laborer | North Carolina |
| 19 | Ida Brown | 52 | Head | — | Maryland |
| 20 | Clarence Brown | 23 | Son | Mechanic | Maryland |
| 21 | Walter Brown | 15 | Son | — | Maryland |
| 22 | Charles Stewart | 15 | Grandson | Presser | Maryland |
| 23 | Catherine Stewart | 15 | Granddaughter | — | Maryland |
| 24 | George Clark | 62 | Lodger | Longshoreman | Maryland |
| 25 | Harry Davis | 38 | Head | Laborer | Virginia |
| 26 | Susie Davis | 37 | Wife-H | Laundress | Virginia |
| 27 | Cordelia Butler | 43 | Head | Presser | Maryland |
| 28 | Emanuel Butler | 11 | Son | Laborer | Maryland |
| 29 | Frank Williams | 34 | Son-in-law | Molder | North Carolina |
| 30 | Mary Williams | 25 | Daughter | Presser | Maryland |
| 31 | Edward Williams | 6 | Grandson | — | Maryland |
| 32 | Ophelia Williams | 5 | Granddaughter | — | Maryland |
| 33 | Leonard Williams | 4 | Grandson | — | Maryland |
| 34 | Mary Williams | 2 | Granddaughter | — | Maryland |
| 35 | Ellas Bond | 50 | Lodger | — | Maryland |
| 36 | Edith Butler | 32 | Daughter | — | Maryland |
| 37 | Otteen Butler | 17 | Son | News Carrier | Maryland |
| 38 | Harvey Butler | 13 | Son | None | Maryland |
| 39 | Daniel Butler | 9 | Son | None | Maryland |
| 40 | Richard Davis | 36 | Lodger | Helper | Virginia |
| 41 | William Glascoe | 40 | Head | Waiter | North Carolina |
| 42 | Rebecca Glascoe | 45 | Wife-H | Laundress | Georgia |
| 43 | Laura Armstrong | 57 | Head | Laundress | Virginia |
| 44 | Matilda Armstrong | 47 | Sister | Laundress | Maryland |
| 45 | Annie Armstrong | 45 | Sister | Laundress | Maryland |
| 46 | Jessie Hall | 47 | Head | Laborer | Maryland |
| 47 | Sophie Hall | 52 | Wife-H | Dressmaker | Maryland |
| 48 | Ambrose Brown | 60 | Boarder | Longshoreman | Georgia |
| 49 | Jane Henson | 69 | Head | Laundress | Maryland |
| 50 | Raymond Henson | 26 | Son | Laborer | 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)