R. Mordecai b. Zevi Hirsch Klatchko (c.1858-1932) Photos of him before and after arriving in America
In 1932, just after the author's death, his work Techelet Mordechai was published. Interestingly, preceding the title page is 2 photos of the author, one before he arrived in America and one after his arrival in Boston.
Notice the different hats, and the loss of the "Brisker Peyos"
R. Mordecai b. Zevi Hirsch Klatchko (c.1858-1932) was born in Vilna and educated in Volozhin. He served for many years in Bangor before moving to Boston (1928?)