This bio is largely taken from a New York Times obituary:
Born in southern Italy, Mr. Blotta began drawing at the age of 3, and then was sent to instructors. His family wanted him to study for the priesthood, but his answer was to start modeling with clay. His parents disciplined him at 14 by sending him to the United States with a tutor. Attracted by New York, he sent his tutor home and stayed on. Deciding to show his parents he could make good on his own, Mr. Blotta became an apprentice in a dress house. He was 20 years old and foreman of a large firm's work room when he tried his hand at designing. His design drew attention and he opened his own establishment in 1919.
In the early nineteen‐thirties, he designed a pantsuit for Marlene Dietrich, long before such apparel became generally fashionable for women. In 1962, he introduced a collection manufactured in Italy, called Blotta International. He had built a factory In Praia‐a Mare, a town in his native Calabria, to promote industry in the depressed southern regions of the country. “I wanted to help the people there,” he said, “and besides you can't get tailors here.”
Mr. Blotta closed his New York factory at 498 Seventh Avenue several years prior to his death, but continued actively as a consultant in design. Blotta passed away from a heart attack at age 83 while living at the New York Athletic Club.