MCB traces its beginnings to 1912 with the partnering of two well known Bronx District Attorneys, George W. Whiteside and Lloyd Paul Stryker. Mr. Stryker handled a number of high profile cases, including the representation of Pepsi Cola® in the trademark infringement suit brought by Coca Cola®. Mr. Stryker also defended Alger Hiss at his first trial which ended in a hung jury (Mr. Hiss changed counsel for his re-trial, after which he was convicted). Assisting Mr. Stryker at the Alger Hiss trial was his associate Harold Shapero, who continued his career at MCB and was considered the "Dean" of the medical malpractice defense bar. In addition to his legal knowledge, Mr. Stryker was the author of what is still considered to be a prime biography of President Andrew Johnson. The New York State Medical Society felt it needed an “outside” attorney to defend its member physicians in New York State, because there were not enough malpractice cases at the time to justify a full time “in-house” lawyer. As a result, in 1914 Whiteside & Stryker became counsel to the State Medical Society. Whiteside & Stryker counseled the New York State Medical Society until 1927 when Lorenz Brosnan, an associate of the Firm, took over as counsel to the New York State Medical Society.