You may want to check out the State library of Michigan in Lansing. In the 1952 edition of the Michigan Geneological Records compiled by the DAR (Volume 27, pages 98-99) you will find the Mapes-Howell family bible records. These family bible entries list the births, deaths, and marriages for the Mapes and Howell families of Livingston County. You may find the person you seek in this book. The State library of Michigan is just west of the state capitol. The whole second floor is dedicated to geneology and the state archives.