Oona Elizabeth McNair (born 1913) (b. 1913) Parents Arnold McNair, 1st Baron McNair Marjorie Bailhache Children James Edward John Altham Elizabeth Georgina Altham David Thomas Wale Altham Jane Henrietta Altham Siblings Sheila Margaret Ramsay McNair Clement McNair, 2nd Baron McNair Elinor Ruth McNair Partners John Barrett Altham