From the September 2016 eNewsletter of the Fairfax County Park Authority (FCPA) is the  following (photo from the Analemma Society)

'With the help of a very generous donation from Jean and Ric Edelman the Park Authority was able to build and furnish a roll top observatory building at Observatory Park at Turner Farm.  The financial services radio talk show host was reminded of his childhood fascination with astronomy when someone gave him a 10-inch telescope to commemorate his 40th birthday. Edelman and his wife and business partner, Jean, share a passion for astronomy and are deeply committed to sharing the knowledge with younger generations."
 
"The Edelmans substantial contribution to the Fairfax County Park Foundation to fund Observatory Park is greatly appreciated. They will join Analemma Society members and other supporters at the ribbon cutting ceremony at 10 AM on October 1, 2016.  The park is located at 925 Springvale Road in Great Falls, VA."