Give the American War Library a try.
Was Paul Wierather 564784701 awared the Silver Star in the Vietnam War
They receive the Silver Star. They also receive a copy of the citation.
Yes he did, he also received the Bronze Star and 3 Purple Hearts while serving 2 tours of duty in Vietnam.
See if the: "American War Library"; and "Statistics of the Vietnam War" can be of help.
I found that it was not until 1950 that enlisted Submariners were allowed to wear the silver dolphins as a breast insigna on their dress uniforms - replacing the silk, embroidered, sleeve insignia. A history of the US Submarine Insigna (on AboutSubs.com) also indicated that in 1943 an enlisted Submariner who wascommissioned as an officer could wear silver dolphins as a breast insigna until he earned his "gold" dolphins. AboutSubs.com also has examples of the various designs for the insignia.
No. The ability to exchange them for silver ended in 1968.
Yes
The country which won the silver medal in men's 50 metre pistol at the Rio 2016 Olympics was Vietnam.
There are no "ranks" to the EGA. The officer version is silver and gold, while the enlisted is gold only.
Dolphins are the symbol of the submariners. Officers that meet the requirements earn the gold dolphins. Enlisted personnel can earn the silver dolphins.
a silver medal
No, they do not