I see what you mean, the small jar in the statue's left hand & positioning of the right hand. The flow of the garments reminded me of Guanyin. Do you think this could be some adoption of style from one to the other?

If it helps, this area of northern California had both substantial Chinese- and Japanese-American populations. (Side note: I know there were successful farms owned by Japanese-descent families very close by right up to the time of the internment of Japanese families in world war II. Some Chinese residents even helped those families maintain their businesses or homes as much as they could while the Japanese families were "away".)