Impact on Directory when a stake divides

I am currently serving on the Lehi Holbrook Farms Stake - Temple Open House Committee. We have responsibility for and are in the thick of coordinating ~1800 assignments to serve as Ushers for the Saratoga Temple Open House. Yesterday, the Lehi Holbrook Farms Stake was split, and a new Cold Spring Ranch Stake was formed. To my surprise, the very next day, I lost access to member contact information (in Member Tools) for all of the wards that were reassigned to the new stake. Since our Open House coordination responsibility now spans both stakes, is there a way to access or obtain member contact information for an adjoining stake?

You're going to have to ask the other stake to help out. Rather than contacting members directly, I'd suggest making assignments to the other stake and having them work with their members. You can ask the ward or stake clerk for the contact information of the other stake.

If you could get some committee members assigned from the new stake, they should be able to see contact information for the adults in their stake once all the dust settles from the new boundary changes. But the quickest action (from russellhltn above) is to have the new stake clerk provide contact information to you for his stake.

You might ask the new stake if they would be willing to add you as an out-of-unit member until after the open house. That, along with a standard calling, should get you the information you need for the next few months.