Mavis Lamrock was born on 11th January, 1913, in Wauchope.
In May, 1914, the family moved to Emu Plains, to a property called 'Yodalla'. Mavis' father planted a lemon orchard and supplied lemons to the lemonade drink company, Tooths. When Mavis married, her father subdivided the block of land along the Nepean River. Mavis and her husband built another home there, called 'Yonder'.