More About James Keahinui

I have found more information about 'Uncle Jimmy' (James KEAHINUI)

James M. KEAHINUI
b. 15 August 1895
d. July 1962
(source: SSDI states that his SSN was issued in New York and that he died Pennsylvania.)

1910 Census for Honolulu, Oahu, Hawaii
James KEAHINUI is a 17 year old student at the Kamehameha School
He was born in Hawaii, his parents were born in Hawaii
He can read, write, and speak English and Hawaiian
(source: 1910 Census found at Ancestry.com)

World War I
James M. KEAHINUI
b. 15 August 1894 Honolulu, Hawaii
Natural born citizen
current address: 10 De Boory, San Francisco, Calif
occ: Fireman
employed by: Dutch Boat Pier 35
where: Stm Java
Military: Private in the Infantry for 3 years in Hawaii
Physical Description: Medium Height, Medium Build, Black Hair, Black Eyes
(source: World War I Draft Card found at Ancestry.com)

World War II
James N. KEAHINUI
b. 15 August 1894
residence: 846 N. Lawrence St. Philadelphia, Pa.
age: 48
place of birth: Honolulu, Hawaii
name and address of person who will always know your address:
David KAHANA
846 N. Lawrence St.
Philadelphia, Pa.
employers name: Merchant Marine
place of employment: Unknown (whoever hire with)
(source: World War II Draft Card found at Ancestry.com)

So this definitely ties James KEAHINUI in with my Gradnfather, David KAHANA. So I believe that this person is definitely 'Uncle Jimmy' who came to the US with Grandpop Dave. I now need to find out if they are related or if they were friends. If they were friends, where did they meet?