I don't know if someone

[azz]

A. They told me every group had to have a doctor. I didn't know if someone in my group was a doctor. I had to go ask.

B. I didn't know if someone in my group was a doctor. That person was John. I knew what everyone else did and I know Pete and Harry were doctors.

Are both of the above correct?

The sentence 'I didn't know if someone in my group was a doctor.' had been used with two different meanings in them. In A I don't have anyone specific in mind. In B, I do.

Many thanks.

[Alan]

All of the sentences you cite here are grammatically possible.

The two with 'someone', however, are stylistically poor (--> anyone).

The possibility of 'someone' replacing 'anyone' is essentially limited to interrogative sentences.