Two and a Quarter: 25-Treasure Island. Map soon.  Links:

Golden Gate International Exposition:
http://www.postcard.org/ggie01.htm
Pacifica:
https://en.wikipedia.org/wiki/Pacifica_(statue)
The Naval History of TI and YBI:
https://archive.org/details/navalhistoryoftr00unitrich
Muni 108 line:
http://www.munidiaries.com/tag/108-treasure-island/
AC Transit T line: https://books.google.com/books?id=o_Q3AQAAMAAJ&pg=SL6-PA8&lpg=SL6-PA8&dq=ac+transit+T+treasure+island&source=bl&ots=tCCgzsSks_&sig=8wPM4kwgPWbEBjghfWq_-Z1Q06Q&hl=en&sa=X&ved=0ahUKEwij1P_c683TAhVE5GMKHS7ODsUQ6AEIUDAI#v=onepage&q=ac%20transit%20T%20treasure%20island&f=false