JW
John Walter — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Walter across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents August & Gertrude — first a son (b.~1910), then head of a 4-person household.
Age 20
b. ~1910
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Walter |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | File clerk |
| Industry | Steamship Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | File Clerk |
| Township / Ward | Malden City |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Walter | Son | — | 20 | ~1910 |
| August Walter | Head | — | 47 | ~1883 |
| Annie Ehlen | Other | — | 63 | ~1867 |
| Gertrude Walter | Spouse | — | 41 | ~1889 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolter |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1910 — 4 household members
| Surname | Walter |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | File clerk |
| Industry | Steamship Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 29
Middlesex-County, Massachusetts · implied b. ~1911 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolter |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Income (1939) | 1140 |
| Highest Grade | Hs 3 |
| 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 John Walter across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father August Walter (~0.92 confidence) and mother Gertrude Walter (~0.92 confidence) and mother Gertrude Wolter (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
August Walter
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Gertrude Walter
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Gertrude Wolter
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Walter
Son · 1930 · age 20 · b. ~1910 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel922:0726)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marguerite C. Brady | 17 | Daughter | — | Massachusetts |
| 52 | Catherine Gallivan | 65 | Head | Saleslady | Massachusetts |
| 53 | Mary P. Gallivan | 35 | Daughter | — | Massachusetts |
| 54 | Eldon H. King | 31 | Head | Patrolman | Wisconsin |
| 55 | Doris B. King | 25 | Wife | — | Massachusetts |
| 56 | Lois D. King | 7 | Daughter | — | Wisconsin |
| 57 | Ruth S. King | 5 | Daughter | — | Massachusetts |
| 58 | June M. King | 2 | Daughter | — | Massachusetts |
| 59 | Harry N. King | 1 | Son | — | Massachusetts |
| 60 | Dennis M. Leahy | 45 | Head | Laborer | Massachusetts |
| 61 | Patrick J. Leahy | 58 | Brother | Watchman | Irish Free State |
| 62 | Catherine Leahy | 42 | Sister | Stitcher | Massachusetts |
| 63 | Herman B. Trapp | 63 | Head | Inspector | Germany Berlin |
| 64 | Margaret M. Trapp | 53 | Wife | — | Massachusetts |
| 65 | Lyman Russ | 27 | Son-in-law | Trouble Man | Pennsylvania |
| 66 | Claire L. Russ | 25 | Daughter | Cost Clerk | Massachusetts |
| 67 | John F. Jr. Mcdonald | 23 | Head | Shipper | Massachusetts |
| 68 | Margaret V. Mcdonald | 19 | Wife | — | Massachusetts |
| 69 | John F. 3Rd Mcdonald | 1 | Son | — | Massachusetts |
| 70 | Robert H. Mcdonald | 0 | Son | — | Massachusetts |
| 71 | Annie M. Duddy | 57 | Head | — | Rhode Island |
| 72 | Eugene B. Duddy | 31 | Son | Timekeeper | Massachusetts |
| 73 | William W. Mcleod | 58 | Head | Cutter | Canada English |
| 74 | Nora M. Darling | 32 | Daughter | Labeler | Canada English |
| 75 | Evelyn R. Darling | 4 | Granddaughter | — | Massachusetts |
| 76 | Patrick A. Mcleod | 31 | Son | Salesman | Canada English |
| 77 | Albert S. Mcleod | 24 | Son | Folder | Canada English |
| 78 | John B. Ehlen | 36 | Head | Postal Clerk | Massachusetts |
| 79 | Mary J. Ehlen | 37 | Wife | — | Massachusetts |
| 80 | August E. Walter | 47 | Head | Stock Clerk | Massachusetts |
| 81 | Gertrude M. Walter | 41 | Wife | — | Germany Northern |
| 82 | John A. Walter THIS PERSON | 20 | Son | File Clerk | Massachusetts |
| 83 | Annie M. Ehlen | 63 | Mother-in-law | — | Massachusetts |
| 84 | Mary T. Monahan | 46 | Head | — | Irish Free State |
| 85 | Helen R. Monahan | 24 | Daughter | Labeler | Massachusetts |
| 86 | Marie T. Monahan | 21 | Daughter | Bill Machine Operator | Massachusetts |
| 87 | John J. Monahan | 20 | Son | Bundle Boy | Massachusetts |
| 88 | M. Henry Monahan | 16 | Son | Errand Boy | Massachusetts |
| 89 | Catherine Monahan | 14 | Daughter | — | Massachusetts |
| 90 | Catherine Powell | 39 | Head | Labeler | Irish Free State |
| 91 | John D. Powell | 19 | Son | Mechanic'S Helper | Massachusetts |
| 92 | Albert G. Powell | 18 | Son | Call Boy | Massachusetts |
| 93 | Leon D. Spinney | 54 | Boarder | Watchman | Maine |
| 94 | William P. Lewis | 36 | Head | Electrician | Massachusetts |
| 95 | Gertrude J. Lewis | 26 | Wife | — | Massachusetts |
| 96 | Charles H. Granville | 42 | Head | Shipper | Canada French |
| 97 | Ethel L. Granville | 36 | Wife | — | Massachusetts |
| 98 | Estelle M. Granville | 13 | Daughter | — | Massachusetts |
| 99 | Eunice C. Granville | 11 | Daughter | — | Massachusetts |
| 100 | Thomas P. Skelton | 49 | Head | Cabinet Maker | Irish Free State |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)