Call the company and verify the correct spelling of the name of the hiring manager. (work.chron.com)
If you don't get to speak with the hiring manager, find out who the recruiter is in charge of hiring for the position as well as the correct spelling of his name. (resumepower.com)
I always say that I have something I'd like to send to that manager and I need the proper spelling of her name. (sciencemag.org)