R. H. THOMAS & CO.
Mr. Thomas was the VP of the New York Stock Exchange in 1897-98. He would become the President of the exchange.
From The New York Times, October 20, 1922:
RANSOM H. THOMAS
Ex-President of New York Stock Exchange Dies in Hospital.
Ransom H. Thomas, head of the New York Stock Exchange firm of R. H. Thomas & Son, 100 Broadway, and formerly President of the Stock Exchange, died yesterday of a throat ailment in the Memorial Hospital, this city, following a three weeks' illness. For the last six years he had been living at the Morristown Inn at Morristown, N. J.
Only recently Mr. Thomas sold his seat as a board member of the Exchange after nearly fifty years of continuous membership, for it was on Nov. 5, 1874, that he was first elected to the privileges of the floor. Throughout this long period he was identified with the chief committees of the Exchange and at the time of his death was still President of the Stock Exchange Building Company.