Photo courtesy HH
Andrew had just graduated first in his class at Harvard Medical School when Dr. Michaela Quinn's mother, Elizabeth, brought him to Colorado Springs to deliver Michaela's baby, and then take over her practice until she was ready to return. Then Andrew would return to Boston where his uncle was grooming him to eventually take over his practice. Things did not go as planned, however. Michaela ended up giving birth in the woods with only her husband, Byron Sully to assist her, while Andrew performed his first solo surgery on Horace Bing, with Colleen Cooper's assistance. He then took over Michaela's practice until she was ready to return. For a time, Andrew and Michaela worked together, until he took the job as resident physician at Preston A. Lodge III's Springs Chateau and Health Resort. As time went on, Andrew became romantically involved with Michaela's adopted daughter, Colleen Cooper, and they were married just before Colleen was to start medical school.
Very little was revealed about Andrew's past in the show. We know that his father was Edward Cook, a friend of Michaela's father, Dr. Josef Quinn. Michaela knew Andrew as a child..."with the missing front teeth". Andrew's uncle was a doctor in Boston, who had planned for Andrew to join him in his practice, and that Andrew stood to inherit that practice eventually.
Photo courtesy HH
We also know that Andrew was in Harvard Medical School, which he had found "exceedingly difficult", because his father had wanted him to have the best education possible. We also know that a few years ago, Andrew's uncle removed his appendix. Apparently Andrew is an only child...no siblings were ever mentioned.
Although Andrew's uncle was referred to frequently, he was never named, nor was Andrew's mother. In the final episode, we find that Andrew's parents are both deceased. I would think that if Andrew did have any siblings, he would have at least thought of them in his wedding preparations...I also wondered why he didn't mention his uncle. Perhaps there was a rift between them. Had Andrew chosen not to tell his uncle about his wedding? As excited as Andrew was to marry Colleen, I can't imagine that he wouldn't have told his uncle, if they still had a good relationship.
Photo courtesy HH