Other membership categories include corporate and sustaining (for defense industry businesses).

Other forms of sponsorship - donations and new membership categories - are being considered.

Today there are a variety of membership categories for those at all interest levels and ages.

There are other membership categories for interested persons who do not meet these qualifications.

There is also an additional membership category for Foreign Members.

A telephone effort began to offer these new membership categories to people in the county.

Other membership categories were established (supporting, life and correspondent members).

There is also an additional membership category for foreign members.

The highest membership category, awarded to persons of particular distinction.

It offered women an 'associate membership' category from 1968 until 1976.