JW
John Welsh — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Welsh across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Charlotte & Vincent — first a son (b.~1919), then head of a 6-person household.
Age 11
b. ~1919
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Welsh |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 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 | ~1919 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Charlotte Welsh | Spouse | — | 41 | ~1889 |
| Lewis Welsh | Son | — | 8 | ~1922 |
| Vincent Welsh | Head | — | 41 | ~1889 |
| John Welsh | Son | — | 11 | ~1919 |
| Catherine Welsh | Daughter | — | 13 | ~1917 |
| James Welsh | Son | — | 6 | ~1924 |
Census Appearances
Son, age 1
Baltimore, Maryland · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| 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
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 6 household members
| Surname | Welsh |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 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
Son, age 21
Baltimore-City-County, Maryland · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welsch |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Occupation | Stock Boy |
| Industry | Ten Cent Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 770 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 John Welsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Charlotte Welsch (~0.92 confidence) and father Vincent Welsch (~0.92 confidence) and father Charles Walsh (~0.92 confidence) and mother Mary Walsh (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Charlotte Welsch
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Vincent Welsch
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Charles Walsh
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mary Walsh
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Welsh
Son · 1930 · age 11 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Catherine Welsh
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Welsh
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Welsh
Sibling · 1930 · age 6
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:1930:15thcensus868unit:0711)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vincent A Welsh | 41 | Head | Brakeman | Maryland |
| 2 | Charlotte Welsh | 41 | Wife | — | Maryland |
| 3 | Catherine E Welsh | 13 | Daughter | — | Maryland |
| 4 | John E Welsh THIS PERSON | 11 | Son | — | Maryland |
| 5 | Lewis A Welsh | 8 | Son | — | Maryland |
| 6 | James V Welsh | 6 | Son | — | Maryland |
| 7 | George Sanders | 45 | Head | Salesman | Maryland |
| 8 | Mabel R Sanders | 35 | Wife | — | Maryland |
| 9 | George Elizabeth Sanders | 64 | Mother | — | Maryland |
| 10 | Elisha Sanders | 29 | Brother | Helper | Maryland |
| 11 | Margaret Sanders | 28 | Sister-in-law | Clerk | Maryland |
| 12 | John Sanders | 11 | Nephew | — | Maryland |
| 13 | William Sanders | 7 | Nephew | — | Maryland |
| 14 | Frederick J Ritter | 35 | Head | Accountant | Maryland |
| 15 | Minnie Ritter | 34 | Wife | — | Maryland |
| 16 | Emily N Ritter | 8 | Daughter | — | Maryland |
| 17 | Nelson F Ritter | 3 | Son | — | Maryland |
| 18 | Samuel R Machen | 36 | Head | Sales Engineer | Maryland |
| 19 | Olive R Machen | 34 | Wife | — | Maryland |
| 20 | August R Machen | 9 | Son | — | Maryland |
| 21 | Janet A Machen | 3 | Daughter | — | Maryland |
| 22 | John Jesmitzer | 40 | Head | Cabinet Maker | Maryland |
| 23 | Elizabeth A Jesmitzer | 39 | Wife | — | Maryland |
| 24 | Joseph W Hyland | 42 | Head | Oil Business | Maryland |
| 25 | Mary P Hyland | 32 | Wife | — | Maryland |
| 26 | Leroy W Hyland | 13 | Son | — | Maryland |
| 27 | Edward V Hyland | 12 | Son | — | Maryland |
| 28 | Raymond Gettier | 34 | Head | Express | Maryland |
| 29 | Ruth S Gettier | 31 | Daughter | — | Maryland |
| 30 | Raymond Gettier | 9 | Grandson | — | Maryland |
| 31 | Alice R Gettier | 5 | Granddaughter | — | Maryland |
| 32 | Herman E Gettier | 2 | Grandson | — | Maryland |
| 33 | Herman Jr Moog | 58 | Head | Car Builder | Illinois |
| 34 | William J Ellis | 44 | Head | Typewriter | Maryland |
| 35 | Annetta L Ellis | 41 | Wife | — | Maryland |
| 36 | Assuella E Ellis | 13 | Daughter | — | Maryland |
| 37 | William J Jr Ellis | 8 | Son | — | Maryland |
| 38 | George W Ellis | 6 | Son | — | Maryland |
| 39 | Walter Schneider | 27 | Head | Machinist | Germany |
| 40 | Minnie Schneider | 23 | Wife | — | Germany |
| 41 | Mary Schneider | 50 | Mother | — | Germany |
| 42 | Kurt Schneider | 23 | Brother | Machinist | Germany |
| 43 | Fred Oltmanns | 26 | Boarder | Pipe Fitter | Germany |
| 44 | James J Daly | 28 | Head | Train Engineer | England |
| 45 | Katherine M Daly | 28 | Wife | Secretary | Massachusetts |
| 46 | George Martin | 60 | Father-in-law | Machinist | Maryland |
| 47 | Frank Wills | 37 | Head | Fireman | Maryland |
| 48 | Mary Wills | 36 | Wife | — | Maryland |
| 49 | Edward Wills | 5 | Son | — | Maryland |
| 50 | Charles A Wills | 1 | Son | — | Maryland |
Related Census Records
Pedigree Summary
John + 3 siblings
Gen 1 · 4 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)