Final answer:
Regina Olson Hughes, who became a notable deaf botanical illustrator, was born in Chicago and lost her hearing in 1895 at age 14.
Step-by-step explanation:
The question asks about the birthplace and the time when Regina Olson Hughes became deaf. Regina Olson Hughes was born in Chicago, and she became deaf after suffering from scarlet fever during her childhood, specifically in the year 1895, when she was 14 years old. She later became a renowned scientific illustrator and is noted for being the only known deaf botanical artist to have illustrations in the Smithsonian Institution.