CJ
Catherine Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Catherine Johnson across the 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 18-person household.
Age 12
b. ~1918
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Johnson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 15 Part |
| Est. Birth Year | ~1918 |
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.
18 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Thelma Johnson | Daughter | — | ~1930 | |
| Anna Lemuel | Daughter | — | 12 | ~1918 |
| Anna Johnson | Daughter | — | 5 | ~1925 |
| Catherine Johnson | Daughter | — | 12 | ~1918 |
| Agnes Lemuel | Daughter | — | 4 | ~1926 |
| Mildred Lemuel | Daughter | — | 2 | ~1928 |
| George Johnson | Head | — | 50 | ~1880 |
| Head Lemuel | Other | — | 35 | ~1895 |
| Casper Johnson | Son | — | 9 | ~1921 |
| William Lemuel | Son | — | 13 | ~1917 |
| Lawrence Lemuel | Son | — | 6 | ~1924 |
| Gordon Lemuel | Son | — | 9 | ~1921 |
| John Johnson | Son | — | 4 | ~1926 |
| Leo Johnson | Son | — | 7 | ~1923 |
| Clarence Johnson | Son | — | 11 | ~1919 |
| Nelson Johnson | Son | — | 2 | ~1928 |
| Mary Johnson | Spouse | — | 41 | ~1889 |
| Alice Lemuel | Spouse | — | 35 | ~1895 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 1
Baltimore, Maryland · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Catherine E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 12
Baltimore, Maryland · implied b. ~1918 — 18 household members
| Surname | Johnson |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| 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 Catherine Johnson across 2 US Census years (1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Catherine Johnson
Daughter · 1930 · age 12 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
John Johnson
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Johnson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Lemuel
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Lemuel
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nelson Johnson
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Lemuel
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Lemuel
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Johnson
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Lemuel
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Casper Johnson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Johnson
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lemuel
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 — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus847unit:0619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Louis Frederick | 52 | Head | Sheet Metal Worker | Maryland |
| 52 | Margaret Frederick | 48 | Wife | None | Maryland |
| 53 | Catherine Frederick | 29 | Daughter | Telephone Operator | Maryland |
| 54 | Annie Frederick | 22 | Daughter | Stenographer | Maryland |
| 55 | Louis Frederick | 10 | Son | None | Maryland |
| 56 | Joseph Cramer | 63 | Head | None | Maryland |
| 57 | Annie Cramer | 57 | Wife | None | Maryland |
| 58 | David Cramer | 36 | Son | Baker | Maryland |
| 59 | John Cramer | 26 | Son | No Work | Maryland |
| 60 | Elmer Cramer | 19 | Son | Branner | Maryland |
| 61 | Leo Cramer | 21 | Son | Cooker Worker | Maryland |
| 62 | Elsie Cramer | 24 | Daughter | Branner | Maryland |
| 63 | Elizabeth Cramer | 26 | Daughter-in-law | None | Maryland |
| 64 | Jessie Cramer | 1 | Granddaughter | None | Maryland |
| 65 | George Johnson | 50 | Head | Police | Maryland |
| 66 | Mary Johnson | 41 | Wife | None | Maryland |
| 67 | Catherine Johnson THIS PERSON | 12 | Daughter | None | Maryland |
| 68 | Clarence Johnson | 11 | Son | None | Maryland |
| 69 | Casper Johnson | 9 | Son | None | Maryland |
| 70 | Leo Johnson | 7 | Son | None | Maryland |
| 71 | Anna Johnson | 5 | Daughter | None | Maryland |
| 72 | John Johnson | 4 | Son | None | Maryland |
| 73 | Nelson Johnson | 2 | Son | None | Maryland |
| 74 | Thelma Johnson | 0 | Daughter | None | Maryland |
| 75 | Head Lemuel | 35 | — | Machinist | Maryland |
| 76 | Alice Lemuel | 35 | Wife | None | Maryland |
| 77 | William Lemuel | 13 | Son | None | Maryland |
| 78 | Anna Lemuel | 12 | Daughter | None | Maryland |
| 79 | Gordon Lemuel | 9 | Son | None | Maryland |
| 80 | Lawrence Lemuel | 6 | Son | None | Maryland |
| 81 | Agnes Lemuel | 4 | Daughter | None | Maryland |
| 82 | Mildred Lemuel | 2 | Daughter | None | Maryland |
| 83 | Charles Brian | 40 | Head | Laborer | Maryland |
| 84 | Julia Brian | 31 | Wife | None | Maryland |
| 85 | Charles Brian | 10 | Son | None | Maryland |
| 86 | Julia Brian | 7 | Daughter | None | Maryland |
| 87 | Fred Tidwell | 53 | Head | Fireman | Maryland |
| 88 | Margaret Tidwell | 39 | Wife | None | Maryland |
| 89 | Thelma Tidwell | 18 | Daughter | Clerk | Maryland |
| 90 | Mary Tidwell | 11 | Daughter | None | Maryland |
| 91 | James Tidwell | 2 | Son | None | Maryland |
| 92 | James Smith | 48 | Cousin | Shoe Maker | Maryland |
| 93 | Maurice Smith | 30 | Boarder | Fireman | Maryland |
| 94 | Henry King | 48 | Head | Mill Work | Maryland |
| 95 | Clara King | 46 | Wife | None | Pennsylvania |
| 96 | Truman King | 20 | Son | Salesman | Maryland |
| 97 | Joseph Mells | 65 | Head | Produce Dealer | Maryland |
| 98 | Sadie Mells | 45 | Wife | None | Maryland |
| 99 | John Mells | 25 | Son | Chauffeur | Maryland |
| 100 | Francis Mells | 18 | Son | None | 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)