Preparation of this catalog involved examining many different kinds of sources, which appear in the separate lists below. A citation as found in the catalog appears in these lists in bold face at the beginning of the complete description of that source.

Some of the citations identify the paintings that that source reproduces, holds, or exhibited. As in the rest of the catalog, brackets enclose painting titles (or title words) not known to have come from the artist.

• Publications other than Newspapers
• Newspaper mentions
• Archives
• Exhibitions
• Auction sales (long)
• Art Galleries and Dealers
• Museums and other public collections that hold paintings by Schafer