1960
Spohn, Ross, Stevens & Pick
1956
Immell, Herro, Buehner & DeWitt. Jack DeWitt and Adjutant General Ralph M. Immell joined Herro & Buehner. All four partners had distinguished military careers. DeWitt was awarded the Distinguished Service Cross, the Silver Star, and the Purple Heart for action in Europe during the Battle of the Bulge. Herro also served 3 years as an Air Force Captain during WWII.
1965
Ross, Stevens, Pick & Spohn
1958
Spohn, Ross, Stevens, Lamb & Pick. Another of Ross' sons, Frank Jr., joins the firm.
1969
Herro, McAndrews & Porter. The Immell firm orchestrated a three way merger with Porter & Porter and McAndrews, Pellino & Huggett.
DeWitt, McAndrews & Porter. Herro left to venture into the financial services industry.
1961
Immell, Herro, Buehner, DeWitt & Sundby