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Mary Moon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Moon across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 7-person household.
Age 59
b. ~1871
Female
Spouse
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Moon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| 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 | Baltimore City |
| Est. Birth Year | ~1871 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Moon | Spouse | — | 59 | ~1871 |
| William Moon | Son | — | 32 | ~1898 |
| Sarah Moon | Daughter | — | 25 | ~1905 |
| John Moon | Son | — | 21 | ~1909 |
| Charles Moon | Son | — | 18 | ~1912 |
| George Moon | Son | — | 28 | ~1902 |
| William Moon | Head | — | 62 | ~1868 |
Census Appearances
1930
Baltimore, Maryland
Spouse, age 59
Baltimore, Maryland · implied b. ~1871 — 7 household members
| Surname | Moon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 18 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 68
Baltimore-City-County, Maryland · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moan |
| Given Name | Mary A. |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Moon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Moon
Spouse · 1930 · age 59 · b. ~1871 · Maryland
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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:1930:15thcensus861unit:0631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Moore | 36 | Head | Conductor | Maryland |
| 2 | Marguerite Moore | 32 | Wife | — | Maryland |
| 3 | James Moore | 11 | Son | — | Maryland |
| 4 | Ruth Moore | 9 | Daughter | — | Maryland |
| 5 | Richard Moore | 7 | Son | — | Maryland |
| 6 | William Lichner | 25 | Head | — | Maryland |
| 7 | Margaret Lichner | 22 | Wife | — | Maryland |
| 8 | William Lichner | 2 | Son | — | Maryland |
| 9 | George Lichner | 1 | Son | — | Maryland |
| 10 | Robert Lichner | 0 | Son | — | Maryland |
| 11 | Vincent Duca | 37 | Head | Importer | Italy |
| 12 | Antoinette Duca | 29 | Wife | — | Maryland |
| 13 | Vincent Duca | 12 | Son | — | Maryland |
| 14 | Rosina Duca | 10 | Daughter | — | Maryland |
| 15 | Mary Duca | 8 | Daughter | — | Maryland |
| 16 | Joseph Duca | 4 | Son | — | Maryland |
| 17 | John Duca | 2 | Son | — | Maryland |
| 18 | Blanche Duca | 0 | Daughter | — | Maryland |
| 19 | Blanche Duca | 70 | Mother | — | Maryland |
| 20 | Jean Campbell | 45 | Head | Carpenter | Scotland |
| 21 | Edith Campbell | 41 | Wife | — | Scotland |
| 22 | Jean Campbell | 15 | Son | — | Maryland |
| 23 | Edith Campbell | 13 | Daughter | — | Maryland |
| 24 | William Campbell | 11 | Son | — | Maryland |
| 25 | Robert Campbell | 10 | Son | — | Maryland |
| 26 | Edward Campbell | 3 | Son | — | Maryland |
| 27 | James Patrick | 47 | Head | — | Lithuania |
| 28 | Anna Patrick | 38 | Wife | — | Lithuania |
| 29 | Anna Patrick | 18 | Daughter | Saleslady | Maryland |
| 30 | James Patrick | 16 | Son | Messenger | Maryland |
| 31 | Joseph Patrick | 13 | Son | — | Maryland |
| 32 | Ruth Patrick | 11 | Daughter | — | Maryland |
| 33 | Albert Patrick | 8 | Son | — | Maryland |
| 34 | William Patrick | 5 | Son | — | Maryland |
| 35 | Edward Patrick | 3 | Son | — | Maryland |
| 36 | Robert Patrick | 1 | Son | — | Maryland |
| 37 | John Patrick | 0 | Son | — | Maryland |
| 38 | William Moon | 62 | Head | Carpenter | Maryland |
| 39 | Mary Moon THIS PERSON | 59 | Wife | — | Maryland |
| 40 | William Moon | 32 | Son | Bookkeeper | Maryland |
| 41 | George Moon | 28 | Son | Conductor | Maryland |
| 42 | Sarah Moon | 25 | Daughter | Bookkeeper | Maryland |
| 43 | John Moon | 21 | Son | Salesman | Maryland |
| 44 | Charles Moon | 18 | Son | — | Maryland |
| 45 | George Reynolds | 45 | Head | Foreman | Maryland |
| 46 | Edna Reynolds | 42 | Wife | — | Maryland |
| 47 | George Jr. Reynolds | 10 | Son | — | Maryland |
| 48 | Kenneth Smith | 43 | Head | Superintendent | Maryland |
| 49 | Blanche Smith | 34 | Wife | — | Tennessee |
| 50 | Kenneth Jr. Smith | 12 | 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)