Sturdy Jack Series

Published by D. Lothrop & Co.
1. Sturdy Jack by Ruth Buck Lamb
2. On the Seas by Anonymous (Copyright 1871)
3. Every Man in His Place by Franz Hoffmann
4. Robin the Runner by Anonymous (Copyright 1872)
5. Soldier Fritz and the Enemies He Fought by Emma Leslie
6. Little Redcap by Anonymous (Copyright 1871)
7. Log House by William H. G. Kingston

This series was originally published in 1872 by D. Lothrop & Co. It was continually published into the 1880's

The exact six titles made up the "Our Boys' Holiday Library" which Lothrop previously published.

In about 1880 "On the Seas" was replaced with "Log House"

Illustrated

The first format books:
Cloth. Green. Blindstamped. Gilt lettering and decoration on the spine.

Later formats of the books in this series are not known.
Books #1, 2-6 were later part of the "Morning Glory Library" a publisher's collection of books.