Lydia Plath is reflecting on the 2008 accident that killed her 17-month-old brother, Joshua Plath. "We had a sibling pass at 17 months when I was 4 years old and it was in the hands of my mom," Lydia, 21, said during an appearance on "The Jinger & Jeremy Podcast," released on Wednesday, July 23. "It was a very tragic accident, and because it affected her so much, we couldn't talk about it." An episode of Welcome to Plathville previously revealed that Kim Path ran over her son Joshua with a vehicle on their family farm.