DH said I had to ask mn as he disagrees with me. DC3 due in 4 weeks.
I think we are sorted if DC3 is a girl but are disagreeing if it's a boy. We both love Arthur but if we put it with our surname I ends up sounds like "half a knot". I think it is fine to go with Hugo Arthur (as people don't really use/even know your middle name anyone once you are older).
DH disagrees as he thinks it will still get called "half a knot" as if Arthur was it's first name.
Sorry hope that actually makes sense ! 