Up Arguello into the Presidio and up the trail (passing the Spire on the next trail over), and down to the road again: 1 thru 7
Crossing over to the National Cemetery Overlook (2009) and down the 98 steps to the Park Trail: 8 thru 28
Found on Google re "The Young Dead Soldiers":
http://www.artandarchitecture-sf.com/the-young-dead-soldiers.html
Back up again at the Overlook: 29 thru 38
Arguello Gate: