1605 Arbor is also the location of the Brockman Clock Tower, which is on the Glendale Historic Register (PDF).
Is the house related to the LA Times bombing of 1910? Yes!
From this "Treasures of Los Angeles Architecture" site:
Brockman had the house built in the style of the Bwick Reim Villa located in Hessen, Germany, his birthplace. The influence of the Prairie and Craftsman Styles are evident everywhere: large porches and public rooms, massive fireplaces, and rich wood paneling.Interesting!
I had the pleasure of visiting this remarkable property in July 2006, when it came up for sale for the first time in twenty-three years. The realtor who has the listing, Maureen Bush, had done quite a bit of research on the history of the estate. 'In the 1930s, the house was purchased by a prominent attorney, W. Joseph Ford, whose many famous trials include the notorious 1910 McNamara case where union members, The McNamara Brothers, bombed the Los Angeles Times Building (killing 22). The brothers also attempted to bomb the home of Otis, erstwhile Times owner. The defending attorney in the case was Clarence Darrow, who hoped to save the defendents from the death penalty.