Susan, from time to time I have planted Lilies that didn't show up the first year, but sprouted and bloomed the 2nd year. So keep an eye out for sprouts next spring (and mark the spot so you don't damage them if they do sprout). Lack of drainage can easily cause the bulbs to rot, and they are quite tasty to voles, but if you haven't had those issues I think you still may see them show up.
If they don't come back, you may want to consider another variety. Golden Stargazer was one of the first yellow Oriental-trumpet hybrids to hit the market, and I've heard reports from gardeners that it can be short lived in some areas. Conca d'Or is a great alternative- huge, fragrant blooms of medium to light yellow, and returns bigger and better each year. I think with better yellow OTs now available, fewer vendors are offering Golden Stargazer.
