{"value"=>"<p>This subseries includes manuscript notes, extracts from and copies of historical documents and original documents gathered by Riker in the course of his research on his ancestors. There is a great deal of material relating to his father, James Riker, Sr. and his maternal grandfather, the American Revolutionary soldier John Van Arsdale. In addition, there is one folder of genealogical information regarding the Crump family and the Ferris family, both descended from the Rikers; this material extends well into the 20th century.</p>"}