Who composed the song “Summer Nights” by Grease?

The song “Summer Nights” by Grease was composed by J. Jacobs and W. Casey.

Summer Nights

J. Jacobs / W. Casey

Summer loving had me a blast
Summer loving happened so fast
I met a girl crazy for me
Met a boy cute as can be

Summer days drifting away
To, oh, oh, those summer nights

Well-a, well-a, well-a, huh
Tell me more, tell me more
Did you get very far?
Tell me more, tell me more
Like, does he have a car?

She swam by me, she got a cramp
He ran by me, got my suit damp
I saved her life, she nearly drowned
He showed off, splashing around

Summer Sun, something's begun
But, oh, oh, those summer nights

Well-a, well-a, well-a, huh
Tell me more, tell me more
Was it love at first sight?
Tell me more, tell me more
Did she put up a fight?

Took her bowling in the arcade
We went strolling, drank lemonade
We made out under the dock
We stayed out till ten o'clock

Summer fling don't mean a thing
But, oh, oh, those summer nights

Tell me more, tell me more
But you don't gotta brag
Tell me more, tell me more
'Cause it sounds like a drag

He got friendly, holding my hand
Well, she got friendly down in the sand
He was sweet, just turned eighteen
Well, she was good, you know what I mean

Summer heat, boy and girl meet
But, oh, oh, those summer nights

Tell me more, tell me more
How much dough did he spend?
Tell me more, tell me more
Could she get me a friend?

It turned colder, that's where it ends
So I told her we'd still be friends
Then we made our true love vow
Wonder what she's doing now

Summer dreams ripped at the seams
But, oh, those summer nights

Tell me more, tell me more