Gibbs and Walker started in the full-back positions in place of Liverpool's Nathaniel Clyne and Southampton's Ryan Bertrand, who featured in Friday's 2-0 win over Estonia.
Hodgson said the performances of Gibbs and Walker, especially in the absence of injured defenders John Stones and Luke Shaw, illustrated England's depth in the full-back position.
"I thought the two full-backs against Estonia [Nathaniel Clyne and Ryan Bertrand] did well, and I thought the two full-backs tonight did well, which was important as we did not have Stones and Shaw, two players who we were really counting on going forward," Hodgson said post match.
"But we think we will get Stones back, even for the November fixtures.
"And for Luke, all we can do is keep our fingers crossed that he recovers quicker than can possibly be expected and that it is not too late for him for next summer, because he is a very, very exciting talent and a left-back who would certainly cause a lot of competition in the squad were he to be fit."