Well, the grandfather of the potential bride/groom is retired military and has access to these facilities. I know my best friend got married at the Ft. Belvoir Officer's Club. Her soon-to-be father-in-law was the club member and he was able to sponsor the couple in the club. I believe in the 1980s, laws were passed that said these types of clubs had to be self-supporting so no tax dollars go to them. In that regard, whether it be an O club or NCO club, I wouldn't see an issue with using them and there's probably no problem in doing so. Rules change all the time, so it's best to check. As I said, these clubs are self-supporting so they would probably welcome the revenue from a wedding and if there's a member willing to sponsor, I don't think they get all that particular about it.
Yes, but as stated and quoted from a direct military site up-thread, grandfather is not a close enough relative.
There are many military bases located near my area and getting onto them is tough for non-military people, as it should be.
Husband's father was retired military and we did have a rehearsal dinner at the NCO club in 1990. I wouldn't presume that to still be an option for a grandparent to do for a grandchild. After 9/11 security has changed.
Does OP even have a child soon getting married? Usually, it's the bride and groom that seek out the venues and plan and coordinate things. Son got married 2 years ago. We discussed ideas on a rehearsal dinner venue and then visited them. Ultimately, it was my son's choice for the venue. We just paid for it. He and his wife decided on the place to get married and the place for the reception.
A quick Google search brought up this guide on weddings on base from Eglin AFB in Florida
https://www.eglin.af.mil/Portals/56/documents/pdfs/Wedding Booklet Eglin.pdf?ver=2017-08-10-133806-377
And this...Army--
Fort Meade Maryland-https://www.ftmeade.army.mil/staff/chapel/wedding_docs/Wedding_SOP_Sept16.pdf
General Information: A wedding ceremony at Fort George G. Meade, Maryland is a sacred event and should be understood as a religious service of the worshipping community. The Historic Main Post Chapel is one of the finest chapels in the United States Army and the Argonne Hills Chapel Center is spacious for large crowds. It should be understood that military club systems and chapel weddings have no denominational affiliations. Weddings at Fort Meade chapels will not be scheduled to accommodate reception plans. Our goal is to make the chapels easily accessible to as many authorized users as possible. The procedures set out in this document must be followed fully, so please read them carefully. If you have any questions about scheduling your wedding, call (301) 677-6035. a.
Persons Authorized to use the Chapel*: - Active Duty military personnel and their dependents with valid ID card - Retired military personnel and dependents with valid ID card - Reserve components personnel on Active Duty * EITHER THE BRIDE OR THE GROOM MUST BE A DOD ID CARD HOLDER
c. Post Access: Post Access is controlled and managed directly by the Visitor Control Center (VCC) and not Fort Meade Chapel Staff. This is a separate but required process and it requires a great deal of time, effort, and planning. All VCC guidance must be strictly followed for a wedding to be held at a Fort Meade Chapel. Moreover, all VCC requirements must be met for BOTH the wedding rehearsal and the actual wedding ceremony. An example VCC Event Request Form and Instructions are available on our website. A courtesy copy of these lists must also be delivered to the Chapel Scheduler. The VCC can be contacted at: Demps Visitor Control Center 902 Reece Road 7:30 a.m. to 6 p.m., Monday to Friday (301) 677-1064 or (301) 677-1065
http://www.ftmeade.army.mil/directorates/des/vcc/vcc.html