Although it has been reduced in size to about an acre in the 21st century, it is the largest privately owned "Authentic" Japanese garden in the United States, and it is on the National Register of Historic Places.

[3] Bowie's later additions to the garden include a triple laceleaf Japanese maple and other artefacts from the 1915 Panama-Pacific International Exposition (1915).

[4] The property was purchased by Achille and Joan Paladini of Hillsborough, California, in 1988 and restored to its original pristine condition.

The memorial structure in Burlingame was designed to honor the valor of Japanese sailors and soldiers during the Russo-Japanese War (1905).

[8] His son in Japan, Imao Hirano, was a poet and worked for abolishing discrimination against mixed race children.