Baxter Licencees

Frederick W Seeley wrote extensively in the early years of the 20th century in the Baxter Times about the production of Baxter Prints. He had first hand experience being, at one time, the manager at J M Kronheim and at the time of writing the articles was the Manager at Norbury Natzio who took over

Can anyone help confirm the connection: In 1857 Joseph Martin Kronheim, Baxter Licencee trading under the name JM Kronheim & Co sold his London business and moved back to his native Germany and then at some time after went to to America and, according to Baxter researcher of the 1920’s  C L Courtney

I have come across a book No Art without Craft the Life of Theodore Low De Vinne by Irene Tichenor. It refers to a contract made between De Vinne and Hart (Francis Hart & Co (?)) and J M Kronheim in 1866 to purchase  Kronheim's plant and rights to use his invention. The contract was cancelled by mut