My husbands grandfather is passing away, and has less than 6 months. We were sorting out his visa here in the U.S, but due to this incident he wants to be with his family while his grandfather passes away and we'll sort out the visa after. We (our 6 week old and I) are traveling with him back to England so his grandfather can meet our baby before he passes away. We are only going for 2 weeks as I have a job I have to come back to, and our home to pay for. My husband is a UK citizen but I'm a US citizen and our son was born in the US, so our son and I are going through US & Other Immigration while my husband goes through UK immigration. I'm always quite nervous about immigration as when I traveled there when I was younger they always seemed very strict and crucial. Is there anything that I will need to provide immigration with other than my son and my passport? I plan on showing them our return ticket so they know that we are in fact leaving the country in 2 weeks, but I'm not sure how strict they are when it comes to entering the country with an infant. My husband will already be through immigration once we are, will they ask if my sons father traveled with us? Or do I need any documentation stating that he is in the airport waiting for us? Any help would be great, as I'm quite the worry wart and would hate to be put under any stress while carrying a 6 week old who will probably be crying! Haha. Thank you.