20世紀30年代，隨着阿道夫-希特勒影響力的上升，數以千計的兒童通過所謂的 "兒童運輸 "逃到了英國。
邁克爾-佐雷克(Michael Zorek)--他的父親維爾納(Werner)是這對夫婦照顧的人群之一--說他們的行為 "意義重大"，他覺得其他人應該知道。
他在接受BBC Points West採訪時說。"我想讓人們意識到這是發生在他們後院的事情。
蒂姆-阿恩斯坦--這對夫婦的孫子--參加了這次活動，並說他 "很高興能夠代表 "他的家人。
該市的學校也已經開始學習 "兒童運輸 "以及阿恩斯坦家族--他們自己也是難民--在其中發揮的作用。
阿黛爾-歐文 - 格洛斯特郡難民和尋求庇護者行動 - 說。"能夠說難民很重要，難民很重要，他們繼續作出貢獻，他們是我們社區的一部分，這一點非常重要。
Thousands of children escaped to the UK on what was known as the Kindertransport during the 1930s as Adolf Hitler rose in influence.
Michael Zorek - whose father Werner was among the group cared for by the couple - said their actions "meant a great deal" and he felt others should know.
More than 80 years after Mr and Mrs Arnstein's selfless actions, Mr Zorek flew over from America - where his father emigrated to after being brought to the city by the Gloucester Association for Aiding Refugees - to attend the ceremony.
He marked World Refugee Day on Monday by unveiling a plaque to the couple - who cared for the boys between 1939 and 1941 at their home in Alexandra Road.
Speaking to BBC Points West, he said: "I wanted people to be aware [that] this was something which happened in their backyard.
"And it was something that was happening over and over again.
"And so the idea that Gloucester was as welcoming as it was to these 10 boys meant a great deal to me."
Tim Arnstein - the couple's grandson - attended the event and said he was "thrilled to be able to represent" his family.
He added: "It's incredibly special to be recognised as part of something which is so, in my view, monumental."
Schools in the city have also begun learning about Kindertransport and the role that the Arnsteins - who were themselves refugees - played in it.
Alyson Meredith - a teacher at Kingsholm Primary School - said: "I think it is so important they know the history of where they live and they know what is happened in their community.
"History is such a key part of what we do within the primary school, secondary school and as people go on."
Adele Owen - Gloucestershire Action for Refugees and Asylum Seekers - said: "It makes it really important to be able to say refugees are important and refugees matter and that they go on to contribute and that they're part of our community.