A little House well fill’d, a little Field well till’d, and a little Wife well will’d, are great Riches.

Benjamin Franklin (1706-1790) American statesman, scientist, philosopher, aphorist

Poor Richard (1735 ed.)
    (Source)

As with so many other proverbs, Franklin did not originate it, just presented it as Poor Richard's own.

The oldest version of this is handwritten (at the same time period) in a copy of the Grete Herball (1526), found by William Hazlitt in the late 19th C:

A little house well filled,
A little land well tilled,
And a little wife well willed,
Are great riches.

It was likely known before then. Subsequent to that, a version was included by John Ray in his Compleat English Proverbs [Ray's Proverbs] (1670):

A little house well fill'd,
a little land well till'd,
and a little wife well will'd.

It was later adapted by James Hook as "A little Farm well till'd," in the comic opera, The Soldier's Return (1805), the first lines of which read:

A little Farm well tilled,
A little Cot well filled,
A little Wife well will'd,
Give me, give me.