Christa Battaglia, right, and Brendan Keating in the duplex they share with their children, Gideon and Fiona, and Battaglia's father, Joseph Battaglia, on Chicago's north side, July 12, 2018. A record 64 million Americans now live in a multigenerational home, according to a Pew Research Center report, up from 32.2 million in 1950.
