Randy Seaver of Genea-Musings shared with us a great link to the online copies of the Maryland Historical Magazine ranging from 1906 to 2005. A free resource that is available to all who register for access.
Once signed in you can quickly run a keyword search.
I ran one on the surname Casteel. The results are shown below:
Then, using the 'find' function, I was able to quickly located where 'Casteel' appears:
There are two persons named Casteel listed in Moses Chaplines muster roll: John and Zachariah Casteel