我的曾祖父是1849年淘金热时期的'49人'淘金者。

My great-grandfather was a ___forty-niner during the 1849 gold rush.

加州大学圣塔芭芭拉分校的四九人队在今年的锦标赛中表现优异。

The ___forty-niners from UC Santa Barbara performed exceptionally well in this year's tournament.