Today, in 1942, the House of Commons condemned the massacre of Jews by Germany. This is news to me, I wasn't aware that that the holocaust was public knowledge until the end of the war. I wonder how much of this percolated through to the 'man on the street'? Even hearing about it, I doubt if anyone at the time could truly imagine the scale of things.
The statement condemned "in the strongest possible terms this bestial policy of cold-blooded extermination" and made a "solemn resolution to ensure that those responsible for these crimes shall not escape retribution".
Unless I'm missing the information, It is not clear from the linked story if the allies were aware of the treatment of the handicapped and the gypsies.