Etexts - Joanna Mathews

Nellie's Miracle (with Ethel's Gift by Rebecca Reed)
At MSU Libraries' Shaping the Values of Youth: Sunday School Books in 19th Century America

Bessie Bradford's Prize
At Project Gutenberg

Guy Hamilton
At Wright American Fiction

Etexts - Julia Mathews

Lily Huson, or, Early Struggles 'Midst Continual Hope
At Wright American Fiction

Biographical - Joanna and Julia Mathews

James McFarlane Mathews (Joanna and Julia Mathews's father; the sisters merit a one-sentence mention...)
At Virtual American Biographies

Genealogy (mostly names of siblings)
At Kith and Kin of Philip D. Campbell