All but one of these crewmen are Red Shirts. Two (Mallory & Rizzo) died in prior episodes under different names. Two died as noted but appeared in later episodes under the same names (perhaps twins?). According to several Star Trek reference guides, Thompson was the only female Red Shirt to die on the show.
“The Deadly Years” - Galway
- Unknown (2)
“By Any Other Name” - Thompson
“The Ultimate Computer” - Harper
“Omega Glory” - Galloway