Thanks to the good offices of Tom Shepard, I've recently been in contact with John Hanson, the son of Jack Hanson and Olive Emily Shepard.  John has scanned several great photographs which are available below.  John's email address is jiha@bellsouth.net.

Olive Emily Shepard, 1906
Austin Hamilton Shepard and Marjorie Hanson, 1913
Thanksgiving in Columbia, 1934
Eagle Park, 1966