Complex sentence: She was born in Columbia, Pennsylvania and married Dr. Richard Reeser (b 1874/5) and only surviving child, also Dr. Richard Reeser was born in Pennsylvania in 1910 or 1911.
Split into simpler sentences: She was born in Columbia, Pennsylvania and married Dr. Richard Reeser (b 1874/5). Their only surviving child, also Dr. Richard Reeser was born in Pennsylvania in 1910 or 1911.