A revised and updated version of
Abraham Kuyper: An Annotated Bibliography 1857-2010 by Tjitze Kuipers (2011)
You can buy a printed edition of this book on the site of the publisher.
Draft of a circular letter (see 1868.11), without the names of the members of the board and the short list of recommenders, which was sent to those who had responded positively to the circular letter mentioned in 1868.01. The following line was added on page four: “Appreciation for the mission of the Marnix Society is gladly shown by ….” A short cover letter was attached (see 1868.04).