There are no missing Ruardean parish records for that period that I am aware of.

I am in same same situation as you as I am unable to find a baptismal record of my great-grandfather Joseph WATKINS born Ruardean c1867. According to census records he was born out of wedlock to Esther WATKINS with 6 other siblings (no baptism records) were also living at the same house born out of wedlock to Esther. This I find hard to believe are the true facts and still do not know who the father of Joseph is and I'm not convinced that Esther is even the mother.

You gave a birth date for Joseph John ALLAWAY so I assume you have obtained a copy of his birth certificate. It is worth considering that maybe your Joseph John was born out of wedlock to a member of the family. We tend to believe what is on a birth certificate is absolute fact but that is not always the case. The registration details would have been supplied by a relative of the child and they could have told a few white lies. It is a lot harder to get away with that kind of thing these days but was not so hard to do a hundred or more years ago.