Who pressed to exclude naval officers from treaty discussions?

Which politicians were most responsible for excluding naval officers from the London Naval Treaty discussions?

The explanation given is politicians associated with international peace groups who wanted an agreement and regarded naval objections as obstruction.

The follow-up asks which politicians were responsible for excluding naval officers. The decision is attributed to participants associated with international peace groups who were pressing for an agreement. Their stated frustration was that naval objections prevented agreement. The disagreement concerned proposals the naval specialists considered technically unworkable.