TR was here too. President Roosevelt was in LA on May 8, 1903. He spent the night in the Westminster Hotel at 4th and Main (the Alexandria didn't open until 1906).
insroland
P.S.
I'm reminded that McKinley was here in 1901. He and the First Lady stayed at the Bivouac (what a coup for Otis).
McKinley at the Arcade Depot:
metnews
And Harrison in 1891 (here speaking at City Hall):
lagreatstreets
Lots more info on presidential visits
here