10 Moms Who Changed the Meaning of Motherhood in 2015

This mom gave her twin sister the most selfless gift while expanding her family.

Dawn changed the definition of motherhood when she offered to carry a child for her twin sister who was left unable to have children after defeating breast cancer. After the birth of her new son, Allison took to Facebook to thank her sister writing:

We cannot thank you enough for the gift you have given us. Although biologically this child will be made up of the two of us, we certainly hope that the strength, selflessness, and power you have shown are traits that he takes from you during his life. Not many people have the ability to make someone else's dream come true. But you have done so and with extraordinary thoughtfulness, openness, and sensitivity.