Some of the marriage records contain 30 to 40 persons (couples) on a single page, The due date for

in Indexing
completion is usually a week or so. If we have not completed the sheet by due date should we take more time to finish it, submit what has been done, or lose the entire work that has been done?
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Answers
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If your batch expires or if you return it before you've completed it, your work is saved and the next indexer picks up where you left off.
https://www.familysearch.org/help/helpcenter/article/why-do-indexing-batches-expire
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