It takes work, the voluntary efforts of people joined in purpose, to pass a living institution from one generation to the next.

The schools have been established by the voluntary efforts of parents.

As is often the case voluntary effort preceded state action.

Most of the activities were - and still are - based on voluntary effort.

But conservation groups said voluntary efforts could not be depended on to protect the bird.

Those groups coordinated the voluntary effort to develop the standards.

These improvements result from combined voluntary efforts by our membership.

Today the Society continues to be operated entirely by the voluntary efforts of its artist members.

The sight did for Lilla what no voluntary effort could have done.

During that time, voluntary efforts would be tried to expand coverage.