The phrase "multiple members" is correct and usable in written English.
You can use it when you need to refer to multiple people who are members of a certain group or organization. For example: The organization had to hire more staff to accommodate the needs of its multiple members.
Studies of families in which multiple members have dementia are helping to sort out the genetic underpinnings of the disease.
It occurs both sporadically and predictably, affecting multiple members of families who carry gene mutations associated with the disease.
During interviews multiple members of staff in different parts of the BBC reported being bullied by a 'known bully'.
After having tested multiple members of the Harding family, all having connections back to James, the family connection is definitive".
Instead of sending messages that could be intercepted, they left one another messages saved in the draft folders of e-mail accounts for which multiple members had passwords.
Such discord often simmered just under the surface in the year before Tillerson's unceremonious firing, in March, according to multiple members of his embattled inner circle.
An unusual feature is being able to send accommodation requests to multiple members in one shot – which saves time but makes the system seem far less personal.
Contributions from multiple members of the interdisciplinary ICU team enhance support for families [14].
Instead, it breaks a story up into manageable tasks, then assigns multiple members to each task.
All, except one, elect multiple members to the parliament based on its share in the country's population.
Laboratory experiments suggest that simultaneous targeting of multiple members of the opioid family may be the way forward.
