Steam Locomotive Information Back Unknown 0-4-0T No. UnknownArroyo Grande, CA, United States Location: Peter Nott (private)Status: Unknown Related Notes Photo Copyright © Hayden Seybold Here are the notes for Unknown No. Unknown, a 0-4-0T located in Arroyo Grande, CA. If you have additional information about this locomotive, and would like to share it, click the Add Note button. Posted: Aug 21, 2011 @ 21:08:52 by Jeff Terry Locomotive is named "Margaret," now owned by Peter Nott. Was reportedly under restoration at Carson, CA.