Funny Old Painting with difficult signature

I picked this painting up at a yard sale recently. The family was selling their mom's old stuff and they said she didn't remember the history of the painting. I thought the picture was somewhat funny. The expression on the couple's faces is nice. The painting is in realy bad shape but I really liked their faces. I haven't been able to find any info on the painting. The only markings on the front are the initials. I believe they are A.G.M. The back has a portion of the old frame label but that is it. I've done some searching and can't find anything on it. Probably never will know but does anyone have any ideas of who painted this and when? Thanks.