Debt existed amongst all social classes so “keeping up with the Jones’s” was even the downfall of people from the higher social classes who often found themselves in debtors’ prisons, having spent more than they could afford, all for appearances' sake. Most imprisoned debtors were male but it was not uncommon for wives and children to be in prison too.
Insolvency means that a person is unable to pay their debts when they are called in. A person who is insolvent always has the liability to discharge them, even after a due period. Imprisonment was a common remedy for insolvency but very few bankrupts ever went to jail as bankrupts. Only after 1861 could insolvent debtors apply for bankruptcy.
Insolvent debtors and bankrupts are different. To qualify for bankruptcy you were supposed to be a trader, making your living by buying and selling, but by the late 1700s this also included most skilled craftsmen. Farmers were specifically excluded.
During the eighteenth and nineteenth centuries, approximately 10,000 people were imprisoned for debt annually; but it is not always clear what this achieved. Prison did not clear a person's debt yet they were required to repay the debt in full prior to release. The amount of freedom a prisoner had depended on the individual prison. Some allowed prisoners to conduct business whilst others allowed inmates to live a short time outside the prison which was known as the Liberty of the Rules. This was the case in the Fleet Prison, well known for Fleet marriages; it was a way for debtors to earn money. For those who were destitute, conditions inside a debtors' prison were intolerable. Some starved to death and it was not unusual for inmates to beg for money from passers-by.
Prisoners had to pay for their keep and some were allowed visitors, however, daily life in debtors' prisons was far from pleasant and subject to rules which today would be considered unreasonable. Some debtor prisoners, particularly in the provinces, were sent to prisons housing vicious and petty criminals but some county establishments did have a “civil” side. Charles Dickens' father was a debtor sent to Marshalsea prison. He became an advocate for debt prison reform as described by his son in Little Dorrit.
The Clink prison in London had a debtor's side accessed from Stoney Street. This prison was the origin of the phrase in the clink. Its location is also thought to be the origin of the term stoney broke.
The Debtors' Act 1869 reduced the ability of courts in sentencing insolvent debtors to prison but they were not prevented from doing so. Debtors with the means to service their debt but who did not do so or defaulted could still be sent to prison, albeit for a very limited time, usually six weeks. A year later the number of imprisoned debtors dropped from 9,759 to 6,605. However, by the start of the twentieth century, that number had again risen to almost 11,500.