Two couples in the wedding announcements, Hannah Diamond and Sam Feldman, and Lindsay Church and Andrew Ellis, who were all in the same Harvard Law School section, were married this weekend. Two other classmates, Habin Chung and Mark Jia, were also married (in 2017) after connecting in the class.

The couples were in the same first-year section (similar to a homeroom period) called 1L, Section 6. Jon D. Hanson, their torts professor, who is also responsible for supervising and orchestrating intellectual and social activities, leads the section.

Professor Hanson, who has taught at the university for 26 years, weighed in on the romances with three theories.

“One, there is nothing to see here,” he said, explaining that 560 students in 1L are divided into sections of 80 students each. “It’s just probability. They are arriving at a certain stage of their life. They are thinking of long-term plans and are young enough not to be committed. Love connections emerge from interaction. It happens to everyone in every section.”