Etymology and distribution of 倉柳.

Kurayanagi 【倉柳】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Wakayama-ken Gobou-shi . Korean type . Terrain . Add "river" to Choi. There is a record of naturalization on Wakayama-ken Gobou-shi on June 30, 1962. Choi is the real name. 崔 Sai reference.