did she move to any other country?
Yes,  U.S.
Masako Katsura
In 1951 Greenleaf was transferred to a U.S. post from Haneda Air Base in Tokyo.
who is masako katsura? A Japanese carom billiards player. where was he born? Japan
wiki:24336393
Masako Katsura [SEP] Emigration to the U.S
In 1951 Greenleaf was transferred to a U.S. post from Haneda Air Base in Tokyo. He and Katsura, who spoke little English, set sail for the United States on the USS Breckinridge, debarking in San Francisco at the end of December 1951, just a few months before the 1952 World Three-Cushion Billiards tournament was scheduled to begin in that city on March 6. Katsura had been conditionally invited to play at the world championship after Cochran, whose billiard parlor was hosting the tournament, had heard of her brilliance from Matsuyama. Cochran was an 8-time world champion having won the world crown at three-cushion billiards in 1933, 1935, 1937, 1938, 1944 and 1945, and at 18.2 balkline, in 1927 and 1934.