I think he works at the Rocking Horse Community health Center in Springfield, Ohio. Don't know anything more, but email address MAY be [email protected] or [email protected]
In case the above does not allow you to contact the author, this is a more recent paper that he co-authored:
Lee, M., Pascoe, J. M., & McNicholas, C. I. (2017). Reading, mathematics and fine motor skills at 5 years of age in US children who were extremely premature at birth. Maternal and child health journal, 21(1), 199-207.
Pascoe is not on ResearchGate but the other two authors are. Maybe they could help you; you could contact them on RG or via their university contact emails:
Hello, were you able to get in touch with JM Pascoe? I also need his email as I need to ask permission to use the MSSI for my dissertation research. Any info will help!