SS Manitoban

Hi :-) I am new here. I am working on my family tree at Ancestry and have a passenger list for the family who arrived Philadelphia from Scotland. This family -- Johann Will, wife Walburga, and their four children (Anton, Andrew, Johann, and Franziska) -- left Glasgow, Scotland, on SS Manitoban, arriving Philadelphia, Pennsylvania on 26 Mar 1888. I wanted to find the departure date from Scotland so I checked this web site /ships/manit/ I saw that ship left Glasgow on 09 Mar 1888, and arrived at Halifax on 21 Mar 1888. There is no mention of that ship arriving in Philadelphia. I am confused. Did this ship leave Halifax and sail to Philadelphia arriving there on 26 Mar 1888? Why is there no such record? Does anyone of you know? Thank you