Alamo Cemetery is located my taking 680 to the Danville Blvd. Exit. Take a left on Danville Blvd and continue until El Portal and take a left. The cemetery is at the end, no sign however.
The entrance (above left, click to enlarge) is at the dead end of El Portal. The inside of the Cemetery (above Right) has very narrow driving roads and many walking paths and is in adequate condition.
Complete records may be found at many public libraries and at LDS Family History Libraries.