Final answer:
The excerpts from 'Drama on the High Seas' provided do not detail two girls traveling together; more context from the source material is needed to accurately answer the student's question.
Step-by-step explanation:
In the text Drama on the High Seas, the two girls traveling together are not explicitly named or detailed. The excerpts provided don't give any conclusive identification of two female characters traveling together as the primary focus. Instead, there is mention of a mother and a little girl, Mrs. Ebbling and a Chicago girl, as well as historical figures like the Grimké sisters who were, in reality, renowned abolitionists. However, these snippets do not seem to be directly connected to the context of the question asked. It seems there is a disconnect between the question and the given excerpts, suggesting that more specific details from the source material are needed to accurately identify these two traveling girls.