I used to live in Marion Ind which is close to Gas city, Ind. I searched for US Glass Co Gas City Ind and several things came up . one entry says US Glass Carnival Glass l0l this entry shows a photo of U S gglass in gas city lists they were an automatic plant and made kitchen ware, dinner ware and colored glass. do a search and see what it brings up. also the Marion library may have some information. also do you have the name of your grandmother and names of the children that would help to search the census. Bing is the search that works on my computer. let me know if you have more names. Helen Ringer now of Kent Co Mich.