You can always get two policies- one, a policy that will have your wife and child as beneficiaries, and help cover costs like mortgage and credit card debt (outstanding debts that need to be cleared so the family won't have financial burden in your absence), replace income for a few years (which allows your surviving spouse some leeway to find a job and stand on her own feet again) and of course, funeral costs and related expenses like medical bills. Another policy can cover work, to make sure that the business can carry on if necessary, especially if others are relying on the jobs you've created for their livelihoods. This type of insurance is typically bought in a partnership, but you could talk to an insurance agent about the best low cost term life insurance options available for a small business owner.
Pat Cassidy
Disclaimer: I work for AccuQuote and this is my personal opinion.