After 1930 on it is hard to get info unless you can find an obituary.

WW11 Navy, Marine Corps coastguard casualties
1941-1945 Louisiana page 23
GIORDANO, Ben R. Pfc. USMCR
father Mr Benedict Giordano, Kenner
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Have you tried familysearch.org
there is a benedetto giordano
bn 1861 died 1895 napoli, italy
spouse Rosa
parents antonio & Carolina giordano

familysearch has Ben Giordano, slidell
and other spelling for Benedict.
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Possible Benedict is spelled different?
Try Ben, Benny, Bennie......

http://files.usgwarchives.net/la/orleans/obits/nol/giordano....


The only Rosalie I found. husband name different
Giordano, Mrs. Rosalie
Death date: 1928-02-06
Age: 67 years born abt 1861
Next of kin: Anthony Giordano (Husband)
Obituary citation(s):
Board of Health Death Register
Times-Picayune, 1928-02-07, Pg. 2 col. 8 sec. 1

Giordano, Bennie, Sr.
Death date: 1956-06-05
Obituary citation(s):
Item, 1956-06-06, Pg. 10 col. 1
States, 1956-06-06, Pg. 4 col. 2
Times-Picayune, 1956-06-06, Pg. 2 col. 6
States, 1956-06-07, Pg. 4 col. 1
Times-Picayune, 1956-06-07, Pg. 6 col. 4

GOOD LUCK