Which name begins with the letter H?

The name Henry is the only one among the choices provided that begins with the letter H. When evaluating the names, it's clear that Henry stands out due to its initial letter, aligning it with the criteria specified in the question. The other names—Ida, John, and Baker—start with different letters (I, J, and B, respectively), making them ineligible as answers to this question. Thus, Henry is the correct choice as it directly fulfills the requirement of starting with the letter H.