Don Adams of Get Smart was originally named Donald Yarmy. His father, William Yarmy, was a Hungarian Jew and his mother, Consuelo Morgan, was an Irish Catholic, though her father appears to have been Dutch. The name Morgan does not seem particularly Dutch.
Anyone seen Consuelo in earlier census records? Adams' father is married with no wife in 1920. The only person close in 1900 is a Consuelo Dieter with an uncle James Morgan.