Re. ages, I can never quite get my head around the fact that Shula (Judy Bennett) is married in RL to Charles Collingwood who is, of course, the dastardly Brine. She is in her 70's iirc, making her rather older than Saint Shula.
In fact I've been listening so long that I well remember the lavish picture spread in Radio Times when St. Shugs married Mark Hebden, and there was rather, ahem, enthusiastic use of bridal veiling to obscure the fact that there was a steep difference in the ages of the 2 actors playing bride and groom.
Maybe someone with a better memory can remind me but I have a niggling recollection that when Alice was born, there was something medically amiss with her too - certainly she's in rude health these days, maybe another example of the miraculous curative powers of the bracing Ambridge air?