List of potential options to-date:

None
Copyright [name of copyright owner] - i.e. use the boilerplate license with no edits
Copyright Project Hydra
Copyright Hydra Partners
Copyright Hydra Developers
Copyright (original developer or institution name)
Original Copyright (original developer)
Additions and Enhancements Copyright (same options for Hydra - Project / Partners / Developers)
All of the above

Also, while git tracks individual contributions, we many want to require that new Pull request include an appropriate update to the CONTRIBUTORS file. This could be part of the review, merge, and release approval process.

FINAL DECISION

Use the apache boilerplate
Use inital year
Use the initial institutions
Append any additional institutions/contributors as desired
"Additional copyright may be held by others, as reflected in the commit log"
Add to main README file "This software brought to you by the Hydra Project http://projecthydra.org"

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