When referring to general authorities and their wives, the standard usage is (for example) "Elder and Sister M. Russell Ballard"; see President Monson's
recent conference talk for several examples of this. That is exactly the same as "Mr. and Mrs. John Q. Public." But in those cases, the wife's name is not mentioned.
If you need to mention both names, I would think it would be clearer to say "Elder John Doe and Sister Jane Doe" -- or if the format allows for two separate lines, simply put
Elder John Doe
Sister Jane Doe
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