Leroy Milton Grider (September 22, 1854 – November 16, 1919) was a pioneer land developer in Los Angeles County, California in the late 19th and early 20th centuries.

Grider first opened a real estate office in Downey and then moved to a space in Los Angeles at First and Main Streets.

[1][7] He was married to Zora Ann Caruthers[10] on March 5, 1879, and, in 1914, she filed for separate maintenance, alleging that he "began to drink fifteen years ago, and has grown worse, so that now he is intoxicated almost daily."

They were living in separate parts of the house at 1160 East Pico Street, situated adjacent to the Birdland business that Grider owned and managed.

She also says he terrifies her by walking up and down the house at all hours of the night, and that frequently she awakens from sleep to find him within a few feet of her bed, silently staring at her.