Alexander Cecil Roy Lawson (1897-)
| +---John Maddern
| +---John Maddern (ABT 1785-OCT 1859)
| | +---Phillis Green 
| +---Solomon Richard Maddern (1837-1922)
| | | +---Henry Uren
| | +---Mary Ann Uren (1800-1892)
| | +---Jane ?
+---Margaret Maddern (05 NOV 1864-1932)
+---Margaret Ann Dermody (1833-1915)