Beginning in the mid-1800s, post-mortem photography (or memento mori) was a popular way to honor and remember the dead. Most photographs were taken shortly after death, and could look incredibly life-like, especially if the deceased was propped up into a standing position. Post-mortem photos of children were particularly common, perhaps because their mortality rate was high during the Victorian era.
updated by @leopoldina: 23 May 2017 02:23:15PM