Complex sentence: The Children's Museum of Indianapolis became involved with the Wikipedian in Residence program after Wikipedian Lori Phillips volunteered for a GLAM event in 2010, becoming the second Wikipedian in Residence and the third, Benoît Evellin, spent six months at the Palace of Versailles.
Split into simpler sentences: The Children's Museum of Indianapolis became involved with the program after Wikipedian Lori Phillips volunteered for a GLAM event in 2010, becoming the second Wikipedian in Residence. The third, Benoît Evellin, spent six months at the Palace of Versailles.