I've seen this, but like all her other obituaries in the national newspapers it's wrong. The couple had separated before 1948, probably in the second half of 1947. The two children were sent to boarding schools in England in early 1948 and Margaret came to England later on. She obtained her LRAM in 1939, not 1949. As there is no British record she must have divorced Michael in Switzerland. Unfortunately Swiss privacy laws appear to prevent access to the record. She remarried in 1951 and Michael remarried in 1952.