Source ABC 11
When the Donor Sibling Registry (DSR) was founded in 2000, Wendy Kramer and her son Ryan were simply hoping to make Ryan available to connect with his biological dad who donated the sperm used to conceive him. Fast forward to 2018, Ryan did connect with his biological father as well as 10 biological siblings (and counting) and the DSR has done the same for 15,557 others.