The last 20 acres of the California Nursery Company became a park in the city of Fremont California in the 1970s, the California Nursery Historical Park.
Note that Niles is now a district of Fremont, California. USA

The California Nursery Garden Club now takes care of the historic office gardens which include the nurseries display garden established in the early 1930s. During the spring the beds were filled with flowering spring bulbs. In the summer and fall, the beds were planted with the roses that were sold by the nursery. Today the beds hold roses.

The garden club has a consolidated list of nursery catalogs on their website. The later catalogs, up to 1970, will soon be on the californiarevealed.org website.