SAN FRANCISCO — Luce, Forward, Hamilton & Scripps and McKenna Long & Aldridge are pushing forward with their merger plans even as a few California leaders jump ship.

In San Diego, Luce, Forward’s IP practice group leader Callie Bjurstrom and Peter Hahn have announced internally they’ll be joining Pillsbury Winthrop Shaw Pittman. Another San Diego partner, Edward “Pat” Swan Jr., who’s been head of the firm’s white-collar practice group, is preparing to leave for Jones Day, said Luce, Forward Managing Partner Kurt Kicklighter.