I think this Leander Madison Frost found Boone County 1850 census

Name: Leander M Frost
Gender: Male
Race: White
Age: 14
Birth Year: abt 1836
Birthplace: Missouri
Home in 1850: District 8, Boone, Missouri, USA
Attended School: Yes
Line Number: 24
Dwelling Number: 152
Family Number: 152
Household Members (Name) Age
Bartlett Gentry
48
Phebe Gentry
46
Angelona Gentry
9
Lucy A Gentry
5
Leander M Frosts 14

He appears in the records more often as Madison Frost

Ends up in Dakota Terr. in 1880
Name: Leander M. Frost
Age: 38
Birth Date: Abt 1842
Birthplace: Missouri
Home in 1880: Lead City, Lawrence, Dakota Territory, USA
Street: 10th
Dwelling Number: 266
Race: White
Gender: Male
Marital Status: Single
Father's Birthplace: Kentucky
Mother's Birthplace: Kentucky
Occupation: Carpenter