Thank you Jessi.R.Davis. I didn't know about that feature in WP. Didn't know about the hierarchy setup in the menu creator. I just assumed that it would drop down the child pages as long as the parent page was listed on the menu.
Since I began this thread I switched to a different theme that I really like. It has lots of customization options, which is really cool. I think I like it the way it is now, without dropdown menus. It's still great info to know and will come in handy in the future or on my other sites.
Thanks to everyone for the input. What a great community this is, where people are happy to help others. It's something we could use more of in all areas of life.
After going back and looking into it a little more, I see this theme does support dropdown menus. The first time I tried it I used the wrong menu. Now the dropdown is setup and working perfect!
Again...thanks to everyone who contributed to this resolution. Special thanks to Jessi, who put it to me in terms that made sense. I learned something new today that will improve all of my website's designs from here on and I'm grateful for that!