In the 1880 Federal Census for Kansas, Labette Co, Howard Twp, the Marvel family appears as follows:
Name Relation Marital Status Gender Race Age Birthplace Occupation Father's Birthplace Mother's Birthplace
Wm. P. MARVEL Self M Male W 45 IN Farmer IN IN
Mary A. MARVEL Wife M Female W 49 IN Keeping House NC NC
Malissa A. MARVEL Dau S Female W 17 IN IN IN
John W. MARVEL Son S Male W 13 IN IN IN
Nancy MARVEL Dau S Female W 11 IN IN IN
Samuel MARVEL Son S Male W 6 AR IN IN

In the 1895 Kansas State Census, they are still in Labette Co, Howard Twp:
Name Age Sex Color Birthplace County City/Township Ward Vol. Sect. Page
Marvel, J W 27 M W Indiana Labette Howard Township 187 17
Marvel, M A 63 F W Indiana Labette Howard Township 187 17
Marvel, W P 59 M W Indiana Labette Howard Township 187 17