Family History

This is a picture I found while importing images into the computer the other day. The woman in the center of the picture is my great grandmother, which leads me to believe that one of the small children is my grandfather. While working on this picture, I have imagined what it would have been like that day...did we sell wine? My grandfather labeled this picture "Vineyard 1920". I'll ask my grandmother if she remembers any other details and let you know! I also want to find out if this was taken on our local property in Southern California....so many questions!