returner

noun

a person or thing that returns
a person who goes back to work after a break, esp a woman who has had children

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for returner

Historical Examples of returner

In comparison with the others he is the Returner through the Occident.
Homer's Odyssey
Denton J. Snider
The returner is also of cast iron, serrated on the edge, to admit the free flowing of the liquor to the mill-bed.
A Dictionary of Arts, Manufactures and Mines
Andrew Ure