Write to Charly at charly@anachron.org. A few clear sentences about the connection you see are enough to begin.
A useful starting point
For a correction, include the page and the passage you are referring to, together with the source that changes the picture. For an archive lead, describe the material, its date if known and how it came to you.
For a project proposal, say what you hope to make or understand and which part you would like to explore together.
Sharing with context
Please indicate whether contributed words, images or documents may be shown on Anachron and how you would like to be credited. A first conversation can begin with a description before any original files are shared.