Williams succeeds Roberts as chair of Tri-Valley Conservancy

Pleasanton businessman joins TVC board

Pleasanton businessman David E. Doyle will succeed former Planning Commissioner May Roberts on the board of the Tri-Valley Conservancy, a Livermore-based accredited non-profit land trust.

Roberts, who has completed two consecutive four year terms on the TVC board, including serving as its chairwoman, will remain a member of the organization's advisory council.

Doyle is chief executive officer and president of Doyle Construction Inc. He moved to the Bay Area in 1984 after receiving a bachelor's degree in construction management from Michigan State University. He and his family have made Pleasanton their home since 2006.

In other changes at the TVC, former Livermore councilman Jeffrey Williams has been named chairman of the board. He worked at Lawrence Livermore National Laboratory from 1971 until his retirement in 2007 and has held several committee and board positions at the TVC.

Stepping into Williams' previous role of vice-chairman will be Ryan Callahan, founder of Shamrock Development & Construction of Livermore. He joined the TVC board in 2011.

Rounding out the slate of newly appointed TVC officers is Alameda County Deputy District Attorney Connie Campbell as board secretary. She was to the board in 2011 by the county of Alameda and also serves on TVC's Land Conservation Committee.

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