I've seen your posting from 2002 and hope you have found some of your answers to the Denning-Pike-OMara family that you are researching. I too am a descendant from Anna Eveline Denning and Pete Pike through their son James Edward Pike and Edith Violet Ohlsen Pike. I did have contact with Gwendolyn [Close] Weeks back in the early 1980s. As a child Margaret O'Mara Denning lived with her family.
She sent me a better story on the O'Mara girls trip from Ireland (recalled from Margaret'sherself)...it's still not much:Mom died in Ireland and Dad took the three girls to family in America (New York)He was buried at sea.Three girls arrived and sent to live with family in NYCity.
I know one other O'Mara sister was Lavina who came to live in the Mercer Co., Illinois area with her sister Margaret.Third sister...?