JM
John Moon — 1920 US Census Record
Model Tree available1920 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Moon across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Mary & Frank — first a son (b.~1911), then head of a 7-person household.
Age 9
b. ~1911
Male
Son
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Baltimore, Maryland |
| Surname | Moon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1911 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Moon | Spouse | — | 42 | ~1878 |
| Flora Moon | Daughter | — | 2 | ~1918 |
| Francis Moon | Son | — | 4 | ~1916 |
| Gordon Moon | Son | — | 15 | ~1905 |
| Leona Moon | Daughter | — | 19 | ~1901 |
| John Moon | Son | — | 9 | ~1911 |
| Mildred Moon | Daughter | — | 13 | ~1907 |
Census Appearances
1920
Baltimore, Maryland
Son, age 9
Baltimore, Maryland · implied b. ~1911 — 7 household members
| Surname | Moon |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 18
Baltimore, Maryland · implied b. ~1912 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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 |
1940
Baltimore-City-County, Maryland
Son, age 28
Baltimore-City-County, Maryland · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Moan |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE |
| 1935 Residence (County) | Baltimore City |
| Occupation | Operator |
| Industry | Electric |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 496 |
| Highest Grade | No 11 |
| 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 Moon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Moon (~0.92 confidence) and father Frank Moan (~0.92 confidence) and mother Emma Moan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Moon
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Frank Moan
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Emma Moan
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Moon
Son · 1920 · age 9 · b. ~1911 · Maryland
★ You are viewing this record
Sibling
Leona Moon
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Moon
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Moon
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Moon
Sibling · 1920 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Moon
Sibling · 1920 · age 4
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
1920 US Federal Census — Baltimore, Maryland
Open full size
1920 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu667unit:0737)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Moon | 42 | Wife | — | Maryland |
| 52 | Leona Moon | 19 | Daughter | Operator | Maryland |
| 53 | Gordon Moon | 15 | Son | Errand Boy | Maryland |
| 54 | Mildred Moon | 13 | Daughter | — | Maryland |
| 55 | John Moon THIS PERSON | 9 | Son | — | Maryland |
| 56 | Francis Moon | 4 | Son | — | Maryland |
| 57 | Flora Moon | 2 | Daughter | — | Maryland |
| 58 | John H Dewany | 30 | Head | Boiler Maker | Maryland |
| 59 | Mary E Dewany | 24 | Wife | — | Maryland |
| 60 | John H Dewany | 3 | Son | — | Maryland |
| 61 | John H Abbott | 47 | Head | Boiler Maker | Maryland |
| 62 | Annie Abbott | 46 | Wife | — | Maryland |
| 63 | John Abbott | 21 | Son | Packer | Maryland |
| 64 | John S Abbott | 19 | Son | Apprentice | Maryland |
| 65 | Earl Abbott | 12 | Son | — | Maryland |
| 66 | Norman Abbott | 6 | Son | — | Maryland |
| 67 | Walter S Taylor | 53 | Head | Cutter | Maryland |
| 68 | Stella M Taylor | 50 | Wife | — | Maryland |
| 69 | Walter R Taylor | 7 | Son | — | Maryland |
| 70 | Joseph J Taylor | 5 | Son | — | Maryland |
| 71 | John Taylor | 1 | Son | — | Maryland |
| 72 | William H Dowling | 27 | Head | Chauffeur | Maryland |
| 73 | Cecelia M Dowling | 27 | Wife | — | Maryland |
| 74 | Howard H Dowling | 5 | Son | Laborer | Maryland |
| 75 | William H Dowling | 1 | Son | — | Maryland |
| 76 | Henry L Bastian | 30 | Head | Merchant | Maryland |
| 77 | Katie L Bastian | 30 | Wife | — | Maryland |
| 78 | George M May | 41 | Head | Surgeon | Maryland |
| 79 | Mary H May | 41 | Wife | — | Maryland |
| 80 | Mildred May | 19 | Daughter | Apprentice | Maryland |
| 81 | Helen May | 16 | Daughter | Apprentice | Maryland |
| 82 | Irene May | 10 | Daughter | — | Maryland |
| 83 | Eleanor May | 5 | Daughter | — | Maryland |
| 84 | August Palmer | 46 | Head | Moulder | Maryland |
| 85 | Clara Palmer | 40 | Wife | — | Maryland |
| 86 | Matthew Palmer | 16 | Son | — | Maryland |
| 87 | William Palmer | 11 | Son | — | Maryland |
| 88 | Thelma Palmer | 8 | Daughter | — | Maryland |
| 89 | Gordon Palmer | 4 | Son | — | Maryland |
| 90 | Sarah H Loughran | 70 | Head | — | Maryland |
| 91 | Mary E Loughran | 48 | Daughter | Packer | Maryland |
| 92 | Harry Porter | 38 | Head | Moulder | Maryland |
| 93 | Emma K Porter | 35 | Wife | — | Maryland |
| 94 | Harry K Porter | 14 | Son | — | Maryland |
| 95 | Milton E Porter | 12 | Son | — | Maryland |
| 96 | Margaret E Porter | 7 | Daughter | — | Maryland |
| 97 | John Singer | 59 | Head | — | Maryland |
| 98 | Lillian Singer | 26 | Daughter | Saleslady | Maryland |
| 99 | Walter J Hams | 32 | Head | Moulder | Maryland |
| 100 | Elizabeth L Hams | 32 | Wife | — | Maryland |
Pedigree Summary
John + 5 siblings
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 1920 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)