John, Sharon. Based on where our relatives settled, we all look to Ellis Island. You are right about Baltimore which was known as Locust Point. Other major immigrant processing was at Boston, New York, New Orleans and Philadelphia. Minor ports of entry include Portland ME, Gloucester MA, New Haven CT, Providence RI, Wilmington DE, Norfolk VA, Savanah GA, Charleston SC, Key West FL, Mobile AL and Galveston TX. There were also Canadian ports of entry. The major east coast ports were Halifax N.S., Montreal and Quebec City. Victoria and Vancouver B.C. were the major west coast ports of entry. A chronological summary of U.S. immigrant processing at the Port of New York is as follows: 1624-31 Jul 1855 no receiving station, 1 Aug 1855-18 Apr 1890 Castle Garden, 19 Apr 1890-31 Dec 1891 Barge Office, 1 Jan 1892-14 Jun 1897 Ellis Island, 15 Jun 1897-16 Dec 1900 Barge Office, 17 Dec 1900-1924 Ellis Island. I got this info from a book "They came in Ships" which our genealogy group leader brought to a meeting a couple years ago. Hope this info can help some followers.