What did Helen Mar Kimball say about her sealing?

Yes. Helen gives her birth date in her letter, and the Joseph Smith Papers dates the sealing to about May 1843. Joseph was thirty-seven.

You answer the question plainly and give the reader two records to compare. You can then examine what the sealing meant.

People married younger then, so the age is a distraction.

The age is established and directly relevant to the power difference. Historical context can help explain a practice, but it does not settle how Helen experienced it.

Lewis’s wording does not say what the extra consequences were. Helen’s own account names social losses and recalls expecting the sealing to be for eternity alone.

You keep both sources in view. Helen documents social consequences, and Lewis’s report is too general to establish sex.

The only thing that could make a sealing more than a ceremony is consummation.

A ceremony can change someone’s family obligations and social life. Check whether the report actually specifies a sexual relationship.

That would be a serious burden. Helen says the promise is why she agreed. I would weigh that alongside her age, her father’s role, and the convictions she expressed later.

You take the pressure seriously while letting Helen describe her own reasons and later beliefs.

She defended plural marriage later, so she must have felt free to choose at fourteen.

A person can affirm a religious belief later and still describe a costly or pressured choice earlier. Helen records both in her letter.