I want to know the answer to the following question:
What were his relatives known for working on?
All the background I'm provided with is that "His research on hearing and speech further led him to experiment with hearing devices which eventually culminated in Bell being awarded the first U.S. patent for the telephone in 1876.[N 4] Bell considered his most famous invention an intrusion on his real work as a scientist and refused to have a telephone in his study.[N 5]". Is that enough to answer the question?
Answer: no