I don't remember a HD dealer in Yankton. My brother had a 73 Sportster and a 74 Superglide. Walt Nelson had a shop 1/2 block east of the bridge north of 2nd street. He moved to an old railroad depot at 8th and Douglas. He went into the hospital for a while and most of his stuff was stolen. Jim Stout, the high school coach, I don't remember him involved with motorcycles.Remember the HD dealer in downtown Yankton then they moved out towards the dam? Jim Stout worked there or was part owner in early to mid 70's.