Melissa Gilbert files for divorce from Bruce Boxleitner
Gilbert and Boxleitner announced their separation in March after 16 years of marriage.
People reports that Gilbert is seeking joint custody of the couple's 15-year-old son, Michael. (And, yes, he is in fact named after Gilbert's "Little House on the Prairie" dad Michael Landon.)
On Wednesday, Melissa's younger sister Sara Gilbert, 36, announced her split from partner of 10 years Allison Adler.