The couple eventually created the brand "Iona Celtic Art" and produced some of their designs in English factories.
[5] They produced souvenirs for visiting tourists, for which there was much demand as visitors to Iona grew.
[2] According to the scholars Sally M. Foster and Siân Jones, "the Ritchies are perceived as belonging firmly to the islanders’ heritage, while the crosses they spawned generate authentic connections with Iona, seamlessly linking the object, gift-giver, place, recipient and any new home to which they are given.
"[5] They maintained a large library on the island, with books on Celtic studies and history published during the 19th-century.
[4] In 1928 they published a map of the island that helped visitors learn the Gaelic names of various sites.