Little, Brown and Company, 1918. Russia and the World . Russian Information Bureau in the U.S., 1919. For subsequent references, use the surname. Watch your punctuation .
Semicolons separate two independent clauses.
The Harrisons wanted to move to a city that was growing, they chose Indianapolis, Indiana. When the subject is the same for both clauses and is expressed only once, a comma is useful if the connective is but . When the connective is and , the comma should be omitted. I have heard his arguments, but am still unconvinced. He has had several years' experience and is thoroughly competent.