Ar ôl y digwyddiadau hyn, ymwelodd Llysgennad yr Unol Daleithiau i’r DU, Jane D. Hartley, â’r Senedd ar 20 Medi. Bu'r Llysgennad Hartley yn trafod Coffáu Birmingham a mynegodd ddiddordeb mewn cefnogi ymdrechion i gryfhau'r cysylltiadau rhwng y ddwy gymuned i helpu i gynnal gwaddol cadarnhaol i bobl yng Nghymru ac UDA.
These engagements were followed by a visit to the Senedd by the US Ambassador to the UK, H.E. Jane D. Hartley, on 20 September. Ambassador Hartley discussed the Birmingham Commemoration and expressed interest in supporting efforts to strengthen the bonds between both communities to help sustain a positive legacy for people in Wales and the USA.