Some links to assist with call sign look up, FCC database, Ham Radio Website links of interest:
FCC ULS Database Link: https://www.fcc.gov/tags/universal-licensing-system
QRZ Call Sign look up and Ham Radio Forum link: https://www.qrz.com/lookup
Net Logger app: https://netlogger.org/download.php
eHAM Ham Radio Resource Website: https://www.eham.net/
Quarter Century Wireless Association (QCWA) website: https://www.qcwa.org/qcwa.php
Vintage Radio And Communications Museum of Ct in Windsor, CT: https://www.vrcmct.org/
Amateur Radio Newsline: Amateur Radio Newsline
Kansas Amateur Radio (KAR with numerous Ham related links): https://ksarrl.org/deeplink