FJ
Frederick Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Frederick Johnson across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 11-person household.
Age 16
b. ~1914
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Johnson |
| Given Name | Frederick A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1914 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Frederick | Age | Birth yr |
|---|---|---|---|---|
| Richard Johnson | Son | — | 3 | ~1927 |
| Ida Johnson | Daughter | — | 19 | ~1911 |
| Walter Johnson | Son | — | 13 | ~1917 |
| Arthur Johnson | Son | — | 9 | ~1921 |
| Helen Johnson | Daughter | — | 11 | ~1919 |
| Mary Johnson | Spouse | — | 38 | ~1892 |
| Frederick Johnson | Son | — | 16 | ~1914 |
| Mary Johnson | Daughter | — | 1 | ~1929 |
| Ruth Johnson | Daughter | — | 15 | ~1915 |
| Walter Johnson | Head | — | 42 | ~1888 |
| Alice Johnson | Daughter | — | 21 | ~1909 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 16
Suffolk, Massachusetts · implied b. ~1914 — 11 household members
| Surname | Johnson |
| Given Name | Frederick A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Other, age 26
Suffolk-County, Massachusetts · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Fredrick |
| Relationship to Head | Ledger |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Repair man |
| Industry | Typewriter |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Frederick Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frederick Johnson
Son · 1930 · age 16 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Arthur Johnson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Johnson
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Johnson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Johnson
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Johnson
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Johnson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnson
Sibling · 1930 · age 1
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel942:0977)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lillian F Vidito | 23 | Daughter | Winder | Massachusetts |
| 52 | Gertrude E Vidito | 19 | Daughter | Packer | Massachusetts |
| 53 | Anna E Vidito | 15 | Daughter | — | Massachusetts |
| 54 | Alice M Vidito | 14 | Daughter | — | Massachusetts |
| 55 | Thomas J O'Malley | 37 | Head | Longshoreman | Massachusetts |
| 56 | Martin J O'Malley | 32 | Brother | Switchman | Massachusetts |
| 57 | Joseph M O'Malley | 28 | Brother | Longshoreman | Massachusetts |
| 58 | Christopher O'Malley | 13 | Brother | — | Massachusetts |
| 59 | John J Lane | 65 | Head | Laborer | Irish Free State |
| 60 | Margaret Lane | 58 | Wife | — | Irish Free State |
| 61 | Arthur Ahearn | 24 | Head | Roofer | Massachusetts |
| 62 | Gertrude A Ahearn | 23 | Wife | — | Massachusetts |
| 63 | Gertrude Ahearn | 3 | Daughter | — | Massachusetts |
| 64 | Arthur Ahearn | 1 | Son | — | Massachusetts |
| 65 | Michael L Frazer | 56 | Head | Master Mariner | Canada-English |
| 66 | Eugenie Frazer | 52 | Wife | — | France |
| 67 | Annie M Beardon | 49 | Head | Cleaner | Irish Free State |
| 68 | Alice Beardon | 19 | Daughter | Sales Clerk | Massachusetts |
| 69 | Robert Beardon | 14 | Son | Errand Boy | Massachusetts |
| 70 | Anna Beardon | 12 | Daughter | — | Massachusetts |
| 71 | Walter J Geary | 25 | Son-in-law | Helper | Massachusetts |
| 72 | Mary F Geary | 20 | Daughter | — | Massachusetts |
| 73 | Patrick J Kennedy | 68 | Head | Laborer | Irish Free State |
| 74 | Mary A Kennedy | 45 | Wife | — | Irish Free State |
| 75 | Ellen M Stapleton | 62 | Head | — | Newfoundland |
| 76 | William J Stapleton | 24 | Son | Helper | Massachusetts |
| 77 | Patrick J Devitt | 48 | Head | Fireman | Massachusetts |
| 78 | Mary E Devitt | 40 | Wife | — | Minnesota |
| 79 | John J Devitt | 16 | Son | — | Massachusetts |
| 80 | James W Devitt | 12 | Son | — | Massachusetts |
| 81 | Dorothy Devitt | 9 | Daughter | — | Massachusetts |
| 82 | Justin H Smith | 56 | Head | Longshoreman | Massachusetts |
| 83 | Maggie Smith | 50 | Wife | — | Massachusetts |
| 84 | Walter H Johnson | 42 | Head | Teamster | Massachusetts |
| 85 | Mary Johnson | 38 | Wife | — | Massachusetts |
| 86 | Alice D Johnson | 21 | Daughter | Box Maker | Massachusetts |
| 87 | Ida M Johnson | 19 | Daughter | — | Massachusetts |
| 88 | Frederick A Johnson THIS PERSON | 16 | Son | — | Massachusetts |
| 89 | Ruth M Johnson | 15 | Daughter | — | Massachusetts |
| 90 | Walter H Jr Johnson | 13 | Son | — | Massachusetts |
| 91 | Helen L Johnson | 11 | Daughter | — | Massachusetts |
| 92 | Arthur E Johnson | 9 | Son | — | Massachusetts |
| 93 | Richard F Johnson | 3 | Son | — | Massachusetts |
| 94 | Mary R Johnson | 1 | Daughter | — | Massachusetts |
| 95 | Thomas J Abbott | 53 | Head | Longshoreman | Newfoundland |
| 96 | Elizabeth Abbott | 51 | Wife | — | Newfoundland |
| 97 | Thomas M Abbott | 26 | Son | Estimator | Massachusetts |
| 98 | Edward Abbott | 24 | Son | Fireman | Massachusetts |
| 99 | Arthur J Abbott | 22 | Son | Shipping Clerk | Massachusetts |
| 100 | Joseph L Abbott | 15 | Son | — | Massachusetts |
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)