Washoe County Libraries informed emailed its entire library leadership and management about SB 115. By informing the staff, it implies support. If they didn't want it, they wouldn't have emailed everyone.
The Las Vegas Clark County Library District (LVCCLD) sent its email to various interested parties, other library districts/board, and external mailing lists.
LVCCLD Chairman trustee Ronald Heezen wrote, "We would like to encourage them [friends, family, and colleagues] to SUPPORT SB115 which would prohibit carrying or possessing certain weapons in a public library IF THAT IS WHAT THE GOVERNING BODY OF THE LIBRARY WANTS TO HAPPEN. All control remains with your board or governing body." (2/27/2017, p. 33)
Heezen is less likely mistaken as he is to be lying. SB 115, in its current form, does not allow for individual libraries to set their policies. What the law, NRS 202.265 does, allows is for schools, colleges, universities, and hypothetically libraries to individually decide who will get permission to carry. One has to apply for written permission individually on a case-by-case basis. LVCCLD, if it went to far to break the law and try to re-write the law, will certainly deny permission. Knowledge of this distinction is hinted at in an email from Betsy Ward, dated 2/21/2017 (p. 4).
LVCCLD's emails and arguments basically center around "children use the library." Adults use the library too. Parents bring their children to the library. Shame on us gun owners for thinking that parents and other patrons ought to be able to protect themselves, their kids, and their fellow citizens from murderers.
LVCCLD says that it wants to provide a place that has similar "protection" against "dangerous" weapons. If the LVCCLD and others in the library/education world were truly as open minded as they claim to be, they would know that disarming law abiding citizens is not protection and no weapon is as dangerous as a homicidal human being.
Take a look for yourself.