Hi Mike, most of these are in TGT-3 files as unknowns.
The only ones that we didn't have are GV, March & the Crest & Seal "RESERVED"
The LCROWN chip is JHC, not GHC, according to the file fonts of T.R. King.
HDH--HUB--I sent this one to Howdy Herz to ID from the Mason files, last week.
HK--TRIANG mold, is E. Cape Giradeau, IL, 1940's-1965, as Travis stated.
LGB--SCROWN, is a promotional ad chip made for Carney Sales Co., Los Angeles,
CA, 1959 (T.R. King files)
MBM--SCROWN, also a promo ad chip, made for 5 Star Vinyl Sales, Reseda, CA,
1974 (T.R. King files)
Sorry I couldn't help more.