A photo of his son (my grandfather) on the left and his daughter on the right. At the bottom it has his initials and the date Jan 17, 1920, which is still a mystery. His son was born in 1918, but could be the date of his incarceration? If my grandfather and his sister had a hazy memory of money/guns on a bed then that could make sense (she was slightly older). Something to look into – but in 16 days it will be the 100 year anniversary of whatever happened!