http://www.oregonlive.com/portland/index.ssf/2016/05/central_library_brings_a_socia.html
Not everywhere, but this continues to be a growing need in libraries with a transient population.
"The library doesn't keep much in the way of records on its patrons, but a
2013 survey of more than 1,000 of them — of whom, 80 percent were users
of Central Library — found that 18.6 percent self-identified as
homeless."
"San Francisco was the first library to hire a social worker in 2009.
Since then, a growing number of urban libraries are hiring or
contracting with social workers; Pima County Library in Arizona even
hired nurses."
