Son of Elvira Frances Smith and her 2nd husband, George Washington THOMPSON [1841-1887, White Co., AR].

John Pickney Helvey was Jefferson's step father but raised him as his own. Jefferson took the surname of Helvey [he was Elivira's 3rd husband].

James Helvy in the 1870 United States Federal Census
Name: James Helvy
Age in 1870: 6
Birth Year: abt 1864
Birthplace: Missouri
Dwelling Number: 29
Home in 1870: Webb, Reynolds, Missouri
Race: White
Gender: Male
Post Office: Barnesvill
Occupation: At Home
Inferred Father: John Helvy
Household Members:
Name Age
John Helvy 56
Frances Helvy 26
Pinkney Helvy 19
Manerva Helvy 7
James Helvy 6... should be Jefferson
Teritha Helvy 4
Henry Helvy

Jefferson Thompson in the 1880 United States Federal Census
Name: Jefferson Thompson
Age: 16
Birth Date: Abt 1864
Birthplace: Missouri
Home in 1880: Webb, Reynolds, Missouri, USA
Dwelling Number: 130
Race: White
Gender: Male
Relation to Head of House: Stepson ***************
Marital status: Single
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee
Occupation: Works At Home
Sick: Rising On Foot
Maimed, Crippled, or Bedridden: Yes
Attended School: Yes
Household Members:
Name Age
John Helvy 68
Leritha E. Helvy 14
Nancy A Helvy 11
Jefferson Thompson 16

Jefferson D Helvey in the 1910 United States Federal Census
Name: Jefferson D Helvey
Age in 1910: 46
Birth Year: abt 1864
Birthplace: Missouri
Home in 1910: Winona, Shannon, Missouri
Race: White
Gender: Male
Relation to Head of House: Head
Marital status: Married
Spouse's Name: Lucinda Helvey
Father's Birthplace: Virginia
Mother's Birthplace: Missouri
Native Tongue: English
Occupation: Laborer
Industry: Lumber Mill
Employer, Employee or Other: Wage Earner
Home Owned or Rented: Rent
Farm or House: House
Able to Read: Yes
Able to Write: Yes
Years Married: 8
Out of Work: No
Number of weeks out of work: 4
Household Members:
Name Age
Jefferson D Helvey 46
Lucinda Helvey 46
Lewella Helvey 20
Joseph F Helvey 19
Charles R Helvey 15
Leaner Helvey 14
Docie Helvey 12
John A Helvey 10
Ira H Helvey 6
Bernice Helvey 5
Mary A Mcphee 16
Mida A Mcphee 15