JM
James Mann — 1930 US Census Record
Model Tree available1930 United States Federal Census · Carroll, Maryland
Our Model Tree links this James Mann across the 1920, 1930 and 1940 US Censuses in Carroll, Maryland (XGBoost, ~Confirmed), with identified parents George & George — first a son (b.~1914), then head of a 4-person household.
Age 16
b. ~1914
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Carroll, Maryland |
| Surname | Mann |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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 | District 4 Precinct 1 Part Of |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Mary Mann | Daughter | — | 15 | ~1915 |
| George Mann | Head | — | 40 | ~1890 |
| Annie Mann | Other | — | 36 | ~1894 |
| James Mann | Son | — | 16 | ~1914 |
Census Appearances
1920
Carroll, Maryland
Son, age 6
Carroll, Maryland · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | James H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Carroll, Maryland
Son, age 16
Carroll, Maryland · implied b. ~1914 — 4 household members
| Surname | Mann |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Carroll-County, Maryland
Head, age 26
Carroll-County, Maryland · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Menn |
| Given Name | James W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Carroll |
| Occupation | Laborer |
| Industry | Steam railroad |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Maryland |
| 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 James Mann across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Mann (~0.92 confidence) and father George Mann (~0.92 confidence) and mother Anna Mann (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Mann
b. ~1890
Source father
● Household
· direct · ~0.92
Father
George Mann
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Anna Mann
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mann
Son · 1930 · age 16 · b. ~1914 · Maryland
★ You are viewing this record
Sibling
Mary Mann
Sibling · 1930 · age 15
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 — Carroll, Maryland
Open full size
1930 US Federal Census — Carroll, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus872unit:0162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Douglas Richards | 4 | Son | None | Maryland |
| 52 | John S. Myers | 74 | Head-H | Farmer | Maryland |
| 53 | David E. Dramer | 59 | Head | Helper | Maryland |
| 54 | Georgia E. Dramer | 54 | Wife-H | None | Maryland |
| 55 | David E. Jr. Dramer | 23 | Son | Laborer | Maryland |
| 56 | Ellsworth J. Dramer | 22 | Son | Repairman | Maryland |
| 57 | Evelyn V. Dramer | 19 | Daughter | Stenographer | Maryland |
| 58 | Henry U. Miller | 19 | Head | Laborer | Maryland |
| 59 | Ruth Miller | 20 | Wife-H | None | Maryland |
| 60 | Clarence F. Wagner | 30 | Head | Operator | Maryland |
| 61 | Grace E. Wagner | 29 | Wife-H | None | Maryland |
| 62 | Emory J. Wagner | 9 | Son | None | Maryland |
| 63 | Catharine E. Wagner | 7 | Daughter | None | Maryland |
| 64 | George H. Wagner | 7 | Son | None | Maryland |
| 65 | Luther J. Wagner | 2 | Son | None | Maryland |
| 66 | Hugo Smith | 40 | Head | Carpenter | Maryland |
| 67 | Jennie B. Smith | 42 | Wife-H | None | Maryland |
| 68 | Burnetta E. Taylor | 19 | Daughter | None | Maryland |
| 69 | Arthur C. Taylor | 22 | S-in-L | Carpenter | Maryland |
| 70 | Eliza J. Taylor | 71 | W-in-L | None | Maryland |
| 71 | Charles E. Taylor | 54 | Head | Farmer | Maryland |
| 72 | Elizabeth Taylor | 55 | Wife-H | None | Maryland |
| 73 | August E. Weaver | 7 | Grand Son | None | Maryland |
| 74 | S. Nelson Taylor | 67 | Head | Laborer | Maryland |
| 75 | Mary M. Taylor | 61 | Wife-H | None | Maryland |
| 76 | Tilden T. Taylor | 27 | Son | Truckman | Maryland |
| 77 | Daisy B. Taylor | 15 | Daughter | None | Maryland |
| 78 | Calvin R. Chew | 61 | Head | Merchant | Maryland |
| 79 | Julia E. Chew | 60 | Wife-H | None | Maryland |
| 80 | Nancy Troutman | 20 | Boarder | Teacher | Maryland |
| 81 | Saby J. Lippy | 56 | Head-H | None | Maryland |
| 82 | Paul C. Lippy | 33 | Son | Operator | Maryland |
| 83 | Carrie M. Lippy | 29 | D-in-L | None | Maryland |
| 84 | Cora V. Lippy | 5 | Grand D | None | Maryland |
| 85 | George W. Mann | 40 | Head | Laborer | Maryland |
| 86 | Annie L. Mann | 36 | Wife-H | None | Maryland |
| 87 | James H. Mann THIS PERSON | 16 | Son | None | Maryland |
| 88 | Mary A. Mann | 15 | Daughter | None | Maryland |
| 89 | S. Cleveland Knight | 34 | Head | Operator | Maryland |
| 90 | Myrtle E. Knight | 31 | Wife-H | None | Maryland |
| 91 | Edith A. Knight | 4 | Daughter | None | Maryland |
| 92 | Doris V. Knight | 2 | Daughter | None | Maryland |
| 93 | Clarence A. Lippy | 39 | Head | Operator | Maryland |
| 94 | Alice A. Lippy | 37 | Wife-H | None | Maryland |
| 95 | S. Wilson Lippy | 15 | Son | None | Maryland |
| 96 | S. Louise Lippy | 14 | Daughter | None | Maryland |
| 97 | H. Irene Lippy | 12 | Daughter | None | Maryland |
| 98 | Olive M. Lippy | 10 | Daughter | None | Maryland |
| 99 | Clarence A. Jr. Lippy | 6 | Son | None | Maryland |
| 100 | Beulah A. Lippy | 4 | Daughter | None | Maryland |
Pedigree Summary
James + 1 sibling
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)