Who is The Morgans from The Pelican Brief and what is their importance?

The Morgans of suburban Arlington, VA, provide corroboration for the facts contained in the "pelican file." Curtis Morgan is an overworked 29-year-old corporate attorney making $80,000 a year working for White and Blazevich in Washington, DC. He is a nice-looking, clean-cut, light skinned Hispanic, expensively dressed, and disgruntled. When Curtis accidentally discovers a memo linking partners Velmano, Wakefield, and Einstein to the murder of Supreme Court justices Rosenberg and Jensen, he makes a copy and calls Washington Post reporter Gray Grantham, wanting to blow the whistle but fearing for his family's safety.